A&P Chap 16

pineal gland

secretes melatonin and sleep-wake cycles

found in epithalamus

cerebellum

coordinates muscular activity

cerebrum

Area of the brain responsible for all voluntary activities of the body & higher processing

phrenic nerve

innervates diaphragm and controls and contracts diaphragm

thalamus

relay center for most incoming and outgoing info

controls what you are consciously aware of

hypothalamus

Fighting, Feeling, Feeding, Mating (regulates hunger and thirst; endocrine function; sympathetic response)

substantia nigra

produces dopamine

-found in brain stem

reticular formation

promotes consciousness

-found in brain stem

superior colliculus

visual reflexes

-found in brain stem

inferior colliculus

auditory reflexes

-found in brain stem

pons

regulates DEPTH and rate of breathing

-found in brain stem

medulla oblongata

regulates heart rate and contractile force

breathes in itself

blood pressure

cerebellum

balance, equilibrium, coordination

limbic system

processes info for memory and emotional response

musculocutaneous

Sensory:Anterior upper arm

Motor:Anterior arm; biceps and brachialis

radial nerve

Sensory:Posterior arm and forearm

Motor:Posterior arm and forearm (triceps and forearm extensors)

ulnar nerve

Sensory:Anterior medial forearm, medial palm of hands and digits 4-5

Motor function:Some muscles of forearm, hand muscles

median nerve

Sensory:Most anterior forearm and hand

Motor:Muscles of anterior forearm and hand

femoral nerve

Within the lumbar plexus

Motor: quadriceps muscles in front of thigh

Sensory: Anterior thigh

obdurator nerve

Found within the lumbar plexus

Motor: Medial thighs

Sensory: Medial thighs

olfactory nerve

sense of smell

optic nerve

carries visual information from the special sensory ganglion in the eyes

oculomotor

motor eye movements, innervates eye muscles, changes diameter of diameter

trochlear

motor, eye movement; innervates obliques of eyes, motor nuclei are found here

trigeminal

provide sensory information from the head and face and motor ctrl to jaws

abducens

from lower lip to jaws, moves eyeball laterally

facial

sensory and motor; proprioception in facial muscles; sensations over face; taste information in anterior 2/3s of tongue

vestibulocochlear

balance sensory nerves, prioproception

glossopharyngeal

innervate tongue and pharynx, sensory information from lining of pharynx and soft palate, taste sensations in posterior third of tongue

Sensory and motor

What type of information does the vagus nerve carry?

Receptors of the esophagus, respiratory tract, and abdominal viscera

What does the vagus nerve provide somatic sensory information from?

Autonomic control of heart, smooth muscles, and glands

What type of control does the vagus nerve have over visceral function and what organs?

Viscera function; abdominal

What organs do the vagus nerve innervate?

Motor

What type of function are accessory nerves?

Voluntary swallowing muscles of soft palate and pharynx and muscles that control vocal cords and sternocleidomastoid and trapezius?

What does the accessory nerve innervate?

Skeletal muscles of tongue

What does the hypoglossal nerve innervate?

Movement of tongue

What does the hypoglossal nerve move?