muscle & nervous tissue

Question 1

muscle
what like
types

Answer 1

highly cellular, well vascular, highly nerved, responsible for tension and body movements
skeletal, cardiac, smooth

Question 2

skeletal what do

Answer 2

movement heat regulation highly metabolic posture breathing
can regenerate
hyprtrophy or atrophy

Question 3

skeletal cells

Answer 3

muscle fibres/ myofibril
striated - stripy
multi-nucleated
peripheral nuclei
mostly voluntary control

Question 4

cardiac what do

Answer 4

heart wall, involuntary
contract - generate pressure ot move blood
change rate and force of contraction to meet metabolic needs

Question 5

heart wall

Answer 5

epicardium - serous membrane, underlying fat - contains blood vessels and nerves
myocardium - middle muscular layer, cardiomyocytes, majority of wass
endocardium - inner layer, endothelial lining - simple squamous

Question 6

cardiac muscle

Answer 6

cardio mycocytes
striated with intercalated disks
cells are branched w central nuclei
lots of mitochondria
involuntary
cant regenerate

Question 7

smooth muscle
where what

Answer 7

walls of hollow organs and tubes/vessels
regulate size of organ/tube, move contents along
tunica media

Question 8

smooth muscle cells

Answer 8

no striations
single nuclei in centre
spindle shape
involuntary
can regenerate

Question 9

nervous tissue

Answer 9

neruons and supporting cells (neuroglia)
neurons ability produce and conduct action potentials
neuroglia nourish protect and insulate neurons