Quiz
L8 Structures Involved in Joints
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Perguntas do quiz (14)
1What is an articulation?
- AWhere two bones meet at a joint.
- BA pivot point.
- CCartilaginous ends moving against each other.
2Soft tissue in joints has no organic component.
- AVerdadeiro
- BFalso
3Choose the FALSE statement about cartilage.
- ACartilage is soft tissue.
- BHyaline cartilage is the same as articular cartilage.
- CFibrocartilage is what the epiphyseal plate is made from.
- DFibrocartilage has a different histological structure from hyaline cartilage.
4Choose the correct statements about cartilage histology.
- AThe chondrocytes live in lacunae.
- BCartilage is composed mainly of collagen fibres.
- CCartilage is white due to fatty acids.
- DCartilage acquires nutrients via diffusion as it is not vascular.
5Diffusion of nutrients into cartilage is achieved via 'loading', regular joint movement/activity
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6Hyaline cartilage is [blank_start]amorphous[blank_end], with [blank_start]little[blank_end] collagen content, and a [blank_start]high[blank_end] water content, that resists [blank_start]compression.[blank_end]
Fibrocartilage has [blank_start]many[blank_end] bundles of collagen, and resists [blank_start]tension.[blank_end] The orientation of these fibres are aligned in the direction of stress and so it also resists [blank_start]compression[blank_end], making it specialised.- Aamorphous
- Blittle
- Chigh
- Dcompression.
- Emany
- Fsparse
- Gtension.
- Hcompression
- Itension
7Lack of bony congruence is made up for by hyaline cartilage moulding to the articulations of synovial joints.
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8Hyaline cartilage remodels.
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9The more bony congruence there is, the more soft tissue support is needed.
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10The menisci are convexly shaped and diffuse forces through the bones of the knee.
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11Choose the incorrect statement.
- AIntervertebral discs are made of fibrocartilage.
- BThe nucleus pulposus is a gel like structure which resists compression, and is distributed over the top of the intervertebral disc.
- C"Slipping a disk" is a tear in the fibrocartilage of the intervertebral disc where the nucleus pulposus has been removed from the proper position.
12Choose the correct statements about ligaments and tendons.
- AThey are composed of DFCT.
- BThey have low collagen content.
- CThey are slightly vascularised.
- DThey are maintained by fibroblasts.
- ELigaments join muscle to bone at an insertion, facilitating movement.
- FTendons join bone to bone, restricting unwanted movement.
13A lateral ligament will restrict adduction.
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14When a tendon is pulled out it usually takes a section of bone with it.
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Informações
- Descrição
- Objectives: Describe the microanatomy of tissues in the joints and explain how their structure reflects their function. Define the three classes of joints and explain how their structure reflects their function.
- Autor
- Mer Scott
- Idioma
- English
- Visualizações
- 33
- Etiquetas
- Avaliação
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