bio 141 spring unit 13 Part 1

Name the structure that connects the two cerebral hemispheres.

corpus callosum

2. Define gyrus.

sticks out slightly

3. Define sulcus.

deep groove

role of precentral gyrus

gyrus located in frontal lobe

control voluntary muscles

role of post central gyrus

located in parietal lobe

process sensations

the cerebrum consist of:

parietal

temporal

occipital

frontal

frontal lobe role

concentration

problem solving

voluntary muscle

parietal lobe role

understanding

senses

temporal role lobe

audiotory

occipital lobe role

visual

longitudinal fissure describe;

deep groove

separate left and right cerebral hemispheres

central sulcus description;

separates the frontal lobe and parietal lobe

lateral sulcus description :

seperate the temporal from frontal + parietal lobes

Transverse fissure role

separates cerebrum from cerebellum

motor cortex location

pre-central gyrus in the frontal lobe

where is sensory cortex located

post-central gyrus in parietal lobe

define brocas area

motor speech area

muscles to coordinate (mouth/larynx/toungue)

Brain stem consist of

mid brain

pons

medulla oblongata

hindbrain consist of

cerebellum

midbrain

pons

medulla oblongata

What is Wernike’s area? Where is it located?

used for language comprehension

sensory speech

write/speak

12. What are the functions of the dominant side of the brain?

speech / write/read

analyize/decisions

13. What are the functions of the non-dominant side of the brain?

non speech

body position

music/visual

emotion

short term memory:

circut of neurons

deep in temporal

memory remain as long as you fire neurons

Long term memory

cerebral cortex

perement connection between neurons

15. What two structures comprise the diencephalon?

hypothalamus + thalamus

Thalamus def

deep + above brainstem

relay center for senes

pain awareness

hypothalamus def:

below thalamus + above pituitary

control homeostasis

regulate vision

connect cns to endocrine system

connected to pituitary gland

midbrain def:

located upper brainstem

relay station for auditory/visual input to maintain posture and smooth movement

Part of brain stem

reticular formation def

core of the brain stem

increases wakefulness

filter sensory info

part of brain stem

Pons def

in the middle of brain stem

relay station between cerebrum + cerebellum and assist in breathing

medulla oblongata def

lower brain stem

cardiac

vasomotor

respiratory centers

fucntion of cerebellum

balance

awareness

equilibrium

location in space

where is cerebellum located?

apart of hindbrain

white matter in cerebellum is called?

arbor vitae

total segments of spinal cord

31 total

Cervical 8

thoracic 12

lumbar 5

sacral 5

what level does the spinal cord end

intervertebral foramina