Wk 5 Skeletal System Flashcards
Bones comprise of how much body mass
Twenty percent
What are the five functions of the skeletal system
Support- provides a structural framework for attachment of other tissues
Protection- soft tissues protected from impact damage : skull protects the brain/ribs protect heart and lung
Leverage - muscles pull on bones ➡️acts like levers in joints ➡️ permit a range of movements in the body ➡️ allow expansion of ribs for breathing
Storage of minerals and lipids - yellow marrow in medullary cavities stores lipids; bone matrix stores minerals
Blood cell production- red marrow in spongy bone produces erythrocytes , white blood cells, lymphocytes and megakarycytes
Would you find elastic cartilage in the pinna of the ear or in the intervertebral discs and between the pubic bones?
You’d find elastic cartilage in the pinna of your ear and epiglottis.
Fibrocartilage can be found in those discs and in and all round your pubic bones.
Do ligaments allow movement and mobility for the body?
Nup, joints do though.
Ligaments stabilise bones and joins bone to bone.
Is elyse really nervous for this quiz?
Yes.
Halppp
What are some axil skeleton bones (central)
Cranium and facial bones (mandible/maxilla)
Auditory ossicles , hyoid, sternum, ribs, vertebrae, sacrum, coccyx
Name some appendicular skeleton bones
Clavicle, scapula, numerous, radius, ulna, carpal and metacarpal bones
Phalanges, hip, femur, patella, Nutella, tibia, fibula, tarsal and metaralsal , calcaneus (heel)
The upper limbs are specialised for ease of movement and those lower ones are for locomotion and support.
Tendons attach _____ to bone and ligaments attach ___ to bone and stabilise bones and joints.
Tendons attach MUSCLE to bone and ligaments attach BONE to bone and stabilise bones and joints.
Ligaments are a part of the _______ system and tendons are part of the ________ system.
Ligaments are a part of the SKELETAL system and tendons are part of the MUSCULAR system.
Joints can be classified into three different types of range of motion what are they
1 synarthrosis: immovable joint , two bones tightly interconnected by dense fibrous connective tissue
2 amphlarthosis : slightly moveable joint which may be fibrous or cartilaginous
3 diarthrosis : freely moveable (or synovial) joint. Classified according to type of movement
What’s a linear motion joint
It’s a glidin one
What does synovial fluid do
Lubricants articulating surfaces to reduce friction , reduces chance of damage to articulate cartliage , distributes nutrients and. Removes waste and acts as a shock absorber
