nerves

Question 1

somatic nerves

Answer 1

to skin and skeletal muscles

Question 2

autonomic nerves

Answer 2

organs

sm and glands

Question 3

describe somatic spinal nerves

Answer 3

motor to skeletal
necessary
sensory to body wall - not to viscera
segmental nerves form plexi - supplying specialised areas - cervical, brachial and lumbosacral

Question 4

spinal cord structure

Answer 4

anterior root - motor

posterior root - sensory

Question 5

spinal nerve

Answer 5

mix of afferent and efferent fibres

Question 6

dorsal and ventral ramus

Answer 6

split after already mixed in spinal nerve
dorsal - supply back
ventral supply everything else - much larger

Question 7

dermatome

Answer 7

An area of skin which is supplied by a single spinal nerve on one side or from a single spinal cord

Question 8

myotome

Answer 8

Part of a skeletal muscle supplied by a single spinal nerve on one side or from a single spinal cord level

Question 9

describe IC nerves

Answer 9

11
1 subcostal
mixed - motor and sensor
run under the costal groove of the rib
lateral cutaneous branch - anterior and posterior
anterior cutaneous branch - medial and lateral

Question 10

describe the phrenic nerve

Answer 10

C3-5
somatic - no autonomic function/visceral distribution
motor fibres - diaphragm
sensory -diaphragm, pleural covering, mediastinal pleura and pericardium
supply peritoneum on inferior surface of central diaphragm

Question 11

describe autonomic nerves

Answer 11

Motor to cardiac muscle, smooth muscle and glands

Sensory to visceral organs

Question 12

PNS

Answer 12

rest and digest
extract nutrients
craniosacral

Question 13

SNS

Answer 13

fight/flat

thoracolumbar