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Description
Flashcards by ashley.robinson41906, updated more than 1 year ago
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Created by ashley.robinson41906
over 12 years ago
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| Question | Answer |
| What is Tissue? | Group of similar cells performing a common function |
| What are the 4 types of tissues? | *Epithelial-Lines cavities *Connective-Holds together *Muscle-Movement *Nervous-Communication |
| What are the 3 Primary germ layers? | *Endoderm-Innermost layer *Mesoderm-Middle layer *Ectoderm-Outermost layer |
| 5 Important functions of Epithelial Tissues? | Protection Sensory Secretion Absorption Excretion |
| Protection | Tough Covering of skin protects from mechanical and chemical injury |
| Sensory Function | Adapt to sensory functions of skin, nose, eye, ear |
| Secretion Function | Hormones, Mucus, digestive juices, sweat |
| Absorption Function | Lining of epithelium, gut, respiratory tract , allows absorption of nutrients from guts |
| Excretion Function | Epithelial lining of kidney tubules and concentration of excretory productions in urine |
| How many blood vessels are in epithelial tissue? | None |
| 4 Shapes of Epithelial cells? | Squamous-Flat, Pale-like Cuboidal- Cube shaped Columnar- Narrow&Cylindrical Pseudostratified Columnar -Oddly shaped |
| How many layers does each have? | Simple Epithelium-Single Stratified Epithelium-Double |
| Endothelium? | Blood & Vessels lining |
| Mesothelium | Surfaces of the pleura, Pericardium, Peritoneum |
| where is simple cuboidal epithelium found? | *Kidney tubules *Secretion and Absorption |
| What does Simple Columnar Epithelium Line? | Stomach, Intestines, Uterus, Uterine tubes, And part of respiratory tract |
| What is Mucus a solution of? | Water, Electrolytes, Proteoglycans |
| Microvilli | Fingerlike Projections |
| What is the strongest type of cartilage? | Fibrocartilage |
| What is not a connective tissue? | Cardiac |
| Most abundant tissue in the body? | *Connective tissue-support, transport, insulation |
| Proteoglycans | a protein and sugar molecule. EX: Hyaluronic acid or chondroitin sulfate |
| Types of protein fibers? | *Collagen-occur in twisted bundles *Elastic *Reticular-Occurs In networks |
| Tissue that heals slowly & lack of blood supply? | cartilage |
| What cartilage is the tip of the nose & external ear composed of? | Elastic cartilage |
| What is Hyaline cartilage? | Semi Transparent, appear bluish white in color. flexible, elastic & consist of living cells |
| Which muscle contains Intercalated disks? | Cardiac Muscle |
| What are Intercalated Disks? | Enables the muscle cells to contract in unison |
| Neutrophils | Found only in blood |
| Bone Marrow | Where Plasma cells mature and develop |
| Skeletal Muscle | Multinucleated |
| In sarcoplasmic Reticulum | Calcium is stored |
| Z-Line | Holds myosin molecules in a stack |
| Neurons | * Conducting unit of tissue *Cannot be replaced if destroyed because they don't go through mitosis |
| Keratinized stratified squamous | found in epidermis |
| Apocrine Glands | Collect secretory products near the apex or tip of cell |
| Holocrine Glands | collect their secretory products inside the cell then rupture to completely to release it |
| Merocrine Glands | Discharge secretions directly through plasma membrane |
| Sebaceous glands | produce oil to lubricate the skin |
| Endocrine Glands | *(Ductless Glands) *Discharge their secretion products(Hormones) directly into blood. (Ex: Pituitary, Thyroid, Adrenal Glands) |
| Exocrine Glands | *Discharge into ducts. *EX: Salivary Glands(Saliva) Discharged into a duct that transport to mouth. |
| Matrix | Non Living cell |
| ECM | (Extracellular Matrix), Complex non living material *Made of proteins & Proteoglycans |
| Fibronectin & Laminin | Help Connect collagen cells by attaching to integrin molecules in Plasma Membrane |
| Fibroblasts | Present in greatest numbers in loose fibrous connective tissue |
| Macrophages | Vital Defense Mechanism |
| Phagocytosis | Large eater |
| Mast Cells | Release variety of molecules (Histamine, Heparin, Leukotriene's, Prostaglandins) Chemicals |
| Blood Cells | Divided into three classes- *RedBloodCells-Erythrocytes *WhiteBloodCells-Leukocytes Platelets-Thrombocytes |
| (Blood Tissue) Plasma | Makes up 55% of whole blood |
| Red Blood Cells | Composed of 45% |
| Functions of blood tissue? | *Transportation of Oxygen & Carbon Dioxide *Maintains Body Temperature *Regulates PH of body fluid |
| White Blood Cells | Destroy Harmful Microorganisms |
| 3 Types of Muscle Tissue? | Skeletal(Striated)&(Voluntary) *Smooth(NonStriated)&(Involuntary)Stomach, Intestines, Blood Vessels, (Single Nuclei) *Cardiac(Striated(Involuntary) Makes up wall of HEART |
| Nervous System Organs? | Brain, Spinal Cord |
| Basic kinds of cells? | Neurons-Characterized by soma *Soma-Cell Body |
| Neuroglia | Protective, Supporting cells |
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