Flashcards
anatomy final
Cards in this deck (184)
- 1Anatomy is the study of the ______ and ______ of the bodystructure and shape
- 2Physiology is the study of how the body and its parts ________function
- 3Provide an example of the relationship between anatomy and physiology:Structure determines function. For example, the shape and size of the ear’s auricle allows for its function – to funnel sound waves into the auditory canal.
- 4first level of organization: ______ Example: proteins cellular; Example: smooth muscle cell tissue; Example: smooth muscle tissue organ; Example: blood vessel organ system; Example: cardiovascular system organismal; Example: humanchemical
- 5second level of organization: _____ Example: smooth muscle cellcellular
- 6third level of organization: ________ Example: smooth muscle tissuetissue
- 7fourth level of organization: _______ Example: blood vesselorgan
- 8fifth level of organization: _____ Example: cardiovascular systemorgan system
- 9sixth level of organization: _____ Example: humanorganismal
- 10Definition of HomeostasisHomeostasis refers to the body’s ability to maintain a relatively stable internal environment despite external changes.
- 11Homeostatic Regulatory Mechanism (3 parts)Receptor
Control center
Effector - 12In negative feedback, the net effect of the response to the stimulus is to ___________ the original stimulus. Example:shut off/reduce/negate
example: thermoregulation - 13Positive feedback mechanisms _____ the original disturbance (stimulus) and push the variable _______ from its original value. Example:increase, farther,
Example: Blood clotting or birth of baby - 14define AnteriorIn front of, front
- 15define PosteriorAfter, behind, following, toward the rear
- 16Define DistalAway from, farther from the origin
- 17define ProximalNear, closer to the origin
- 18define DorsalNear the upper surface, toward the back
- 19define VentralToward the bottom, toward the belly
- 20define SuperiorAbove, over
- 21define InferiorBelow, under
- 22Define LateralToward the side, away from the mid-line
- 23Define MedialToward the mid-line, middle, away from the side
- 24define Midsagittal PlaneSagittal plane that divides the body into equal right and left regions
- 25Frontal Plane or Coronal Planevertical plane that runs through the center of your body from side to side. This plane divides the body into front (anterior) and back (posterior) regions.
- 26Transverse Planehorizontal plane that runs through the midsection of your body. This plane divides the body into upper (superior) and lower (inferior) regions.
- 27Sagittal planeDivides left from right.
- 28Carbohydrates examplesMonosaccharide: glucose
Polysaccharide: glycogen - 29Carbohydrates functionQuick energy source (glucose);
Energy storage (glycogen) - 30Lipids examplesphospholipid
triglycerides (fat)
steroid - 31lipids functionMain component of cell membrane
Energy storage, cushioning, insulaion
In cell membrane & act as hormones - 32Proteins exampleshemoglobin
collagen
antibodies - 33proteins functionsTransport oxygen
Gives strength & flexibility to bones, cartilage, and tendons
Provide immunity - 34Nucleic Acids examplesDNA and RNA
- 35nucleic acids functionsStorage and processing of Genetic information
- 36High Energy Compounds exampleAdenosine Triphosphate (ATP)
- 37High Energy Compounds functionStorage or transfer of energy
- 38The carbohydrate ___________ is the most important metabolic fuel in the body.glucose
- 39What lipid is important for cell membranes?phospholipid
- 40The building blocks of proteins are ________________, How many different types of these building blocks are there?amino acids, 20
- 41Nucleus functionControl center; stores DNA, the cells instructions for making proteins
- 42Rough Endoplasmic Reticulum functionStudded with ribosome which make proteins; protein synthesis
- 43Smooth Endoplasmic Reticulum functionLack ribosomes so no protein synthesis; instead, makes lipids & carbohydrates and detoxifies poisons
- 44Golgi Apparatus functionPost office; receives vesicles from the endoplasmic reticulum; packages contents and sends them to the proper place in the cell
- 45Mitochondria functionPower house; make the majority of the cell’s ATP (energy currency)
- 46Lysosome functionGarbage disposal; contains digestive enzymes to break down damaged organelles and waste
- 47Ribosome functionProtein factory; strings amino acids together to build proteins
- 48Centrioles functionHelps move chromosomes around during mitosis (cell division)
- 49Microvilli functionSpecialization that increases surface area of the plasma membrane for absorption
- 50Cilia functionSpecialization that allows for movement on the cell’s surface
- 51Cytoskeleton functionGives cell structure and allows for motility (movement of the cell)
- 52The functions of the skeletal system include:1. Support of entire body
2. Protection of internal organs
3. movement (Levers)
4. storage of fat and calcium
5. formation of blood cells - 53Why did the “failed initiations” fail to initiate an action potential?They were not large enough to reach threshold so voltage-gated sodium channels never opened.
- 54Cerebral hemispheres (collectively called cerebrum) functionLocalizes and interprets incoming sensory info,
Controls voluntary skeletal muscle activity,
Intellectual and emotional processing - 55Thalamus functionRelays sensory input to cerebrum
- 56Hypothalamus functionRegulates body temperature, food intake, water balance and thirst,
Regulates output of pituitary gland - 57Mesencephalon (Midbrain) functionVisual and auditory reflex centers
- 58Pons functionRelays info from cerebrum to cerebellum, Helps control respiratory rate
- 59Medulla Oblongata functionHelps control heart rate, breathing, vessel diameter and vomiting
- 60Cerebellum functionHelps with coordinated and smooth muscle movements,
Responsible for balance and posture. - 61The Central Nervous SystemConsists of the brain and spinal cord.
- 62The Peripheral Nervous System consists of _________nerves found outside the Central Nervous System.
- 63Name 2 effects of the Parasympathetic Nervous Systemdecrease heart rate, decrease respiratory rate,
increase digestive activity, increase urine production - 64Parasympathetic Division: Known as the ______ division”rest and digest”
- 65Sympathetic Division: Known as the ______ division“fight or flight”
- 66Name 2 effects of the Sympathetic Nervous Systemincrease heart rate, increase respiratory rate,
dilate blood vessels that supply the brain and muscles - 67The __________ is the motor subdivision of the peripheral nervous system (PNS) that controls body activities automatically (involuntarily).Autonomic Nervous System (ANS)
- 68Give 1 example of a spinal reflex and describe how it worksThe withdrawal reflex moves a limb away from a painful stimulus
- 69A reflex is an _____ response to a stimulus.automatic
- 70Neurons that receive information from our sensory organs (e.g. eye, skin) and transmit this input to the central nervous system are called ___________afferent neurons
- 71__________ carry impulses away from the central nervous systemEfferent nerve fibers
- 72The action potential stimulates the ______ to release calcium into the cytoplasm of the muscle fiber.sarcoplasmic reticulum
- 73The calcium triggers the binding of _________ (crossbridge formation).myocin to actin
- 74Myosin heads pivot toward the ___ of the sarcomereM-line
- 75ATP provides the energy needed to detach and recock each myosin head so it can bind to another binding site farther along the ___________sliding filament
- 76Calcium entry causes the neurotransmitter _____ to be released.Acetylcholine (Ach)
- 77__________ channels open and calcium enters the axon terminal.Voltage –gated Calcium
- 78Acetylcholine diffuses across the ________ (the space between the axon terminal and muscle fiber) and binds to acetylcholine receptors on the muscle fiber.synaptic cleft
- 79f. Acetylcholine is broken down by the enzyme _______ and the muscle fiber goes back to rest.Acetylcholinesterase (AchE)
- 80Hyaline cartilage model is covered with bone matrix by bone forming cells called _______osteoblasts
- 81The enclosed cartilage model is dissolved away, leaving a ____________ within the newly formed bone.medullary or marrow cavity
- 82Primary motor cortex locationFrontal
- 83Primary motor cortex functionInitiates voluntary movement
- 84Primary sensory cortex (somatosensory cortex) locationParietal
- 85Primary sensory cortex (somatosensory cortex) functionPereption of general senses (pain, temperature, touch pressure)
- 86Visual cortex functionVisual perception
- 87Visual cortex locationOccipital
- 88Auditory cortex functionTemporal
- 89Auditory cortex locationAuditory perception
- 90Olfactory cortex locationTemporal
- 91Olfactory cortex functionOlfactory (smell) perception
- 92Gustatory cortex locationInsula
- 93Gustatory cortex functionGustatory (taste) perception
- 94skeletal muscle functionvoluntary movement
- 95cardiac muscle functionkeeping the heart pumping and blood circulating around the body.
- 96smooth muscle functioncontract to push food through your body.
- 97Negative feedback ExampleIncreased blood sugar –insulin is released; decreased blood sugar-- glucagon is released
- 98what hormones come from the Pituitary gland- Anti-diuretic hormone (ADH)
- Growth hormone - 99what does the hormone Anti-diuretic hormone (ADH) do?Promotes reabsorption of water by the kidneys.
- 100what does Growth hormone do?Promotes growth of all cells
- 101what hormones come from the Thyroid gland?- T3 and T4
- Calcitonin - 102what does Calcitonin do?Lowers calcium in blood
- 103what do the hormones T3 and T4 do?Promotes glucose utilization by most cells
- 104what hormones come from Parathyroid Glands?Parathyroid hormone (PTH)
- 105does does Parathyroid hormone (PTH) do?Elevates calcium in blood.
- 106what hormones come from Adrenal Glands (cortex) ?Aldosterone
- 107what does the hormone Aldosterone do?Increase reabsorption of sodium ions and water by the kidneys.
- 108what hormones come from the Adrenal Glands (medulla)?Epinephrine & Norepinephrine
- 109what does Epinephrine & Norepinephrine do?Increase cardiac activity, blood pressure, and blood glucose levels.
(the “fight or flight” hormones) - 110what hormones come from the Pancreas?- Insulin
- Glucagon - 111what does Insulin do?- Promotes uptake of glucose by cells which decreases blood glucose levels.
- 112what does Glucagon do?- Promotes break down of glycogen by liver which increases blood glucose levels.
- 113____________ is created in response to exposure to a foreign substance.Adaptive immunity
- 114_________ is something already present in the body.Innate immunity
- 115what is the female gonad and gamete?ovaries and eggs
- 116what is the male gonad and gamete?testes and sperm
- 117Gametes go through a process of genetic reduction called __________ - and only gametes do this.meiosis
- 118gametes are ____ cells that contain __ chromosomeshaploid, 23
- 119contraction of the heart chambersSystole
- 120relaxation of the heart chambersDiastole
- 121Teeth functionaid in mechanical breakdown of food
- 122Tongue functionaids in swallowing
- 123Salivary glands functionproduce saliva which is a mixture of mucus and serous (enzyme) fluids
- 124pancreasproduces digestive enzymes that break down all categories of digestible foods
- 125liverproduces bile, which emulsifies lipids
- 126gallbladder functionstores and secretes bile
- 127stomach functionaids in mechanical processing and digestion
- 128The kidneys produce __________urine
- 129The ureters transport urine toward the __________bladder
- 130The ___________ temporarily stores urine prior to eliminationurinary bladder
- 131The urethra is a tube that conducts urine to __________the outside of the body.
- 132the removal of organic waste products from body fluidsexcretion
- 133the discharge of these waste products into the environmentmicturition
- 134The _____ is the functional unit of the kidneynephron
- 135Each kidney has more than __________ nephrons.1 million
- 136Nephrons and ____________ are closely entwined inside each kidney.capillaries
- 137__________: blood pressure drives water and small solutes (not proteins or blood cells) out of leaky capillaries and into the entrance of a nephronFiltration
- 138____________: most water and solutes in the filtrate move from a nephron’s tubular portions, back into the blood inside the nearby capillariesReabsorption
- 139________________: toxins, drug residues, H+, and some other solutes move out of nearby capillaries and into the filtrate inside the nephron for excretion in the urineSecretion
- 140When blood volume decreases, ____________also decreases.blood pressure
- 141When blood pressure decreases, the ____________ could potentially decrease.glomerular filtration rate
(GFR) - 142Why is decreased GFR dangerous?We are not adequately filtering waste out of the blood
- 143Decreased blood pressure triggers the release of the enzyme ________ into the blood.renin
- 144Renin leads to the production of _________angiotensin II
- 145Angiotensin II has the following effects:a. Triggers peripheral vasoconstriction which elevates blood
pressure
b. Constricts efferent arterioles, which further elevates GFR.
c. Triggers release of epinephrine/norepinephrine from the
adrenal medulla which increases overall blood pressure.
d. Triggers release of the hormone antidiuretic hormone (ADH)
from the pituitary and aldosterone from the adrenal gland. - 146Antidiuretic hormone (ADH) is secreted from the posterior pituitary gland when we are ______________.dehydrated
- 147increased blood volume = _________ blood pressure!increased
- 148Aldosterone is a hormone secreted by the ___________adrenal cortex
- 149Aldosterone stimulates the ___________ of Na+ into the blood.reabsorption
- 150Why are the testes located outside of the abdominal cavity?Spermatogenesis requires a slightly lower
temperature than normal body temperature - 151Semen is the fluid that carries _______sperm
- 152Seminal glands (vesicles) secrete a fluid containingprostaglandins and sugar
- 153describe prostaglandinshelp stimulate contractions in both the male and female reproductive tracts that help move sperm
- 154Prostate gland secretes a fluid that helps activate ____________.sperm
- 155Bulbourethral glands secrete alkaline mucus which helps to neutralize urinary ________ in the urethraacid
- 156One ejaculation delivers more than _______50-150 million sperm cells per milliliter.
- 157____________ is the production of sperm. This process begins at puberty and continues throughout life.Spermatogenesis
- 158Sperm production occurs in the _______________ of the testisseminiferous tubules
- 159in the testes, _____ initiates sperm productionfollicle –stimulating
hormone (FSH) - 160The hypothalamus secretes gonadotropin-releasing hormone which stimulates _____________ to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH).the anterior pituitary gland
- 161In the testes, LH signals the release of ________ and other androgens.testosterone
- 162Ovaries produce ________ and the hormones ___________oocytes, estrogen and
progesterone. - 163Females are born with approximately ________ oocytes1 million
- 164The __________ are where fertilization occurs and the _________ is where the fetus develops.fallopian tubes, uterus
- 165_______ is the production of egg cell (oocytes)Oogenesis
- 166Oogenesis occurs in the ________follicle of the ovary
- 167The uterine (menstrual) cycle prepares the uterus for the ___________.embryo
- 168A fertilized egg is called a _________.zygoyte
- 169period from fertilization to week 8, the conceptus is called an embryoEmbryonic Period
- 170During this period, 3 primary germ layers are being formed.Embryonic Period
- 171period from week 9 through birth, the conceptus is called a fetusFetal Period
- 172During this period, organs grow and specialize. Body proportions change. Fetus grows from approximately 1 gramFetal Period
- 173_________: (conception – birth) takes 9 months and can be divided into 3 trimestersGestation
- 174During the _________ trimester all organ systems begin to develop.first
- 175The ________ trimester completes the development of organ systems.second
- 176The ________ trimester is mostly devoted to depositing adipose tissuethird
- 177describe specificity of the adaptive immune systemThe specificity of the immune system is due to the fact that both lymphocytes and antibodies only recognize one epitope or antigenic determinant. The immune system can recognize thousands of millions of different antigens, but for each determinant, a specific lymphocyte will be induced.
- 178describe tolerance of the adaptive immune systemImmune tolerance is the state of unresponsiveness of the immune system to substances or tissues that have the potential to induce an immune response.
- 179describe memory of the adaptive immune systemthe ability of the immune system to quickly and specifically recognize an antigen that the body has previously encountered and initiate a corresponding immune response.
- 180describe versatility of the adaptive immune systemVersatility is underscored by genetic recombination mechanisms which ensure the expression of immune receptors with high specificity for antigen recognition in T and B lymphocytes.
- 181simple squamous epithelium functiondiffusion
- 182pseudostratified ciliated columnar epithelium functionsecretion
- 183simple cuboidal epithelium functionsecretion
- 184stratified squamous epithelium functionprotection
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- Flashcards on anatomy final , created by Regina Smith on 11/12/2019.
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