Nerves

Question 1

Afferent vs efferent

Answer 1

▪️afferent- sensory nerve fibres (skin to CNS)

▪️efferent- motor nerves fibres (CNS to muscles)

Question 2

Ganglion

Answer 2

▪️collection of cell bodies
▪️dorsal root (sensory)
▪️ventral root (motor)

Question 3

Dermatomes

Answer 3

▪️a part of skin that is supplies by a single spinal nerve (sensory)
▪️gradual change, not sudden

Question 4

Myotome

Answer 4

▪️skeletal muscle or a group of muscles that receive motor axons form a given spinal nerve

Question 5

Radial nerve

Answer 5

▪️posterior compartment
▪️slips underneath teres major and underneath triceps
▪️passes anterior at distal end of humerus over lateral epicondyle
▪️divides when gets to forearm to give deep and superficial branch of the radial nerve.
▪️D passes posterior to forearm