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PORTAGE LEARNING BIOD 152: MODULE 2 PROBLEM SET Q & A
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PORTAGE LEARNING BIOD 152: MODULE 2 PROBLEM SET Q & A
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PORTAGE LEARNING BIOD 152: MODULE 2 PROBLEMSET Q & A
1) List the four parts of the human brain.
a. Cerebrum, brainstem, diencephalon, cerebellum
2) Describe the number, location, and function of the brain ventricles.
a. Lateral
ventricles (2)
Third ventricle
(1) Fourth
ventricle (1)
3) Label the ventricles.
a. See figure 2.2
4) Describe the brain meninges and the layers.
a. Dura mater – subdural space
Arachnoid meninx –
subarachnoid sapce Pia mater
5) What is the function of the choroid plexus?
a. CSF is fluid formed in the walls of the ventricles from
blood plasma by permeating through the choroid
plexus.
6) What is the blood-brain barrier and how is it maintained?
,PORTAGE LEARNING BIOD 152: MODULE 2 PROBLEM
SET Q & A
a. Diffusion barrier, formed from astrocytes surrounding brain
capillaries, Necessary for stable chemical environment.
7) Describe the cerebrum.
a. largest part of the brain, comprising 83% of total brain mass
8) What is the median longitudinal fissure?
a. Separates left and right hemispheres.
9) Raised ridges on the cerebrum are called .
a. gryi
10) The separates the cerebrum from the cerebellum.
a. Transverse fissure
, PORTAGE LEARNING BIOD 152: MODULE 2 PROBLEM
SET Q & A
11) The outer
portion of the cerebral hemispheres is called the and is
highly convoluted and gray in color.
a. Cerebral cortes
12) Describe the functions of the lobes of the cerebrum.
a. Frontal lobe controls reasoning and decision making as well as
muscle actions. The parietal lobe receives sensory information
from the mouth for taste and part of the skin for touch pressure
and pain. occipital is for vision. The temporal lobe for hearing
and smelling.
13) What is the difference between a primary area and an association
area in the brain?
a. Primary receives information for one specific type of
sensory. Association receives more than one for purposed
action.
14) Label the regions of the
cerebral cortex. a.
15) List the three major parts of the brain stem.
a. midbrain, medulla obbligato, and pons
16) How is the medulla oblongata involved with the heart and lungs?
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