A&P exam 2

temporal lobe

Involved with hearing and smell. Auditory

read diencephalon

1. Regulates hunger and thirst 2. Regulates the autonomic nervous system 3. Relay center for sensory input 4. Regulates circadian rhythms 5. Regulates body temperature 6. Arousal from sleep

Place in order the circulation of cerebrospinal fluid.

3 CSF flows through the paired lateral apertures or the single medial aperture and into the central canal of the spinal cord. 4 CSF flows through the subarachnoid space and removes waste products. 5 CSF flows into the arachnoid villi and drains into the dural venous sinuses. 1 CSF is produced by the choroid plexus in the ventricles. 2 CSF flows from the 3rd ventricle through the cerebral aqueduct into the 4th ventricle.

motor impulses of the ANS

Also known as the thoracolumbar division, the sympathetic nervous system exits the CNS via many spinal nerves T1-L2. Action potentials travel along the preganglionic nerve fiber and enter the sympathetic chain ganglion. Fibers exiting the sympathetic chain ganglia take one of three routes: 1) the spinal nerve route, 2) the sympathetic nerve route, or 3) the splanchnic nerve route. Arriving at target cells, postganglionic nerve fibers release acetylcholine or norepinephrine into the synaptic cleft. The effect of norepinephrine binding to adrenergic receptors stimulates cardiac muscle cells.

Somatic Nervous System

Autonomic Nervous System

Interventricular foramina.

Cerebrospinal fluid enters the third ventricle of the brain by way of the

Amygdaloid body

Involved in emotion, especially fear

Hippocampus

Essential for the formation of long-term memory

Cingulate gyrus

Focuses on emotionally significant events

parietal lobe

General sensory functions, such as touch and taste, Somatosensory cortex, somatosensory association area

Insula lobe

Primary gustatory cortex

occipital lobe

Processes visual input and helps store visual memories

conus medullaris.

The tapering inferior end of the spinal cord is called

helps anchor the conus medullaris to the coccyx.

This is a thin strand of pia mater that

frontal lobe

Voluntary motor functions, verbal communication, and personality, Voluntary skeletal muscle control, verbal communication

flow of cerebrospinal fluid

aqueductcentraldurallateralmedianpiasubarachnoidsubdural CSF is secreted by the chroid plexus and flows into each lateral ventricle. CSF then flows down the cerebral aqueduct to the fourth ventricle. CSF then flows out two lateral apertures or one median aperture. CSF fills subarachnoid space and bathes external surfaces of brain and spinal cord. At arachnoid villi, CSF is reabsorbed into venous blood of dural venous sinuses.

The blood-brain barrier is made up of:

astrocyte perivascular feet and capillary endothelial cells.`

cerebrospinal fluid

brain or spine liquid

cauda equina

nerve roots collectively

filum terminale

project from the spinal cord; "horse's tail" is the

Parahippocampal gyrus

surrounds hippocampus, *memory encoding and retrieval*