anatomy Flashcards
what is opposition of digits
moving thum to fingers
what is pronation of hand
anterior (palm) –> posterior
what is abduction of thumb
moving it away from hand
where do nutrients from GI tract first drain to
liver
what are the main glands in endocrine system
thryoid, parathyroid, adrenal, pituitary (brain), ovary, pancreas, testes
what is the mediastinum
area between the lungs
what are the areas of the mediastinum
superior, inferior (anterior, middle, posterior)
where does the heart lie
middle mediastinum
what is the pericardium
sac surrounding the heart
what are the 2 layers of the pericardium
fibrous (outer), and serous (inner)
what can serous pericardium be divided into
visceral (covering heart) and parietal (lining fibrous)
what is the outer cortex of a bone
dense, strong and compact
what is the inner medulla
inside bit, porous, weaker and spongy (can cpntain bone marrow)
what type of cartilage lines the compact bone
hyaline
what is the periosteum
fibrous connective ‘sleeve; that is well vascularised and innervated
describe a bone from middle to top
diaphysis, metaphysis, epiphyseal growth plate, epiphysis
what is endochondral ossification
initial small hyaline cartilage grows to long bone
what are the 5 types of bones and examples
flat bones eg sternum, long eg femur, irregular eg vertebra, sasamoid (within some tendons) eg patella, short eg carpals
what 2 bones are common fractures
neck of femur and clavicle
how to fractures heal
callus forms around fracture lines and remodels
what are bony features
additional features when bone grows
what are the 3 fossae of the skull
anterior, middle, posteria
how many vertebrae do adults have
33
how many in each section
7 cervical, 12 thoracic, 5 lumbar, 5 sacral, 4 coccyx
what is primary and secondary curvature
primary spine curves out, secondary in
what parts of the spine are primary
thoracic and sacral/ coccyx
what are invertebral foraminae
space between adjacent vertebrae where nerves emerge
what is a faucet joint
between articular process of 2 vertebrae
what is C1 called and why is it special
atlas, does not have body or spinous process
what is C2 called and what does it have
axis, odontoid process
what is C7
vertebrae prominens, first palpable spinous process
how is skeletal muscle packages
muscle –> muscle fibres –> myofibril –> sacromere –> myofilaments
where are skeletal muscles striated
overlapping actin and myosin
what are the 5 types of muscles and examples
circular eg orbicular oculi (eyes), pennate eg deltoid, fusiform eg biceps brachii, flat with aponeurosis eg external oblique and quadrate eg rectus abdominis
what do tendons do
attach muscle to bone
what is aponeurosis
flattened tendon, attach muscle to tissue not bone
what are origins of muscle
where the attach to one one side of a joint
what is the insertions
place they attach on other side
what are protective reflexes
rapid and involuntary to danger
what are automatic reflexes
done without thinking by nervous system and muscle
what is flexion withdrawal reflex
brain not involves, touch something damaging and recoil (ie hot pan)
what is the route taken by AP’s in a reflex
reflex arch, sensory –> spinal cord –> motor
what is muscle paralysis
dysfunctional motor nerve supply, muscle cannot contract