Term
| Why do you think the olfactory bulbs are larger in sheep than in human? |
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Definition
| sheep rely on smell more than humans do |
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Term
| How does the size of the cerebrum in human compare with the size in sheep? Why?? |
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Definition
| The cerebrum of humans is larger than that of sheep because the mental capacity of humans is larger- mental, emotional, spiritual, etc. |
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Term
| What is meningitis and why is it a serious condition? |
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Definition
| The inflammation of the meninges; it is a serious threat because a bacterial or viral meningitis may spread to the central nervous system. |
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Term
| What is hydrocephalus and what causes it? |
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Definition
| "Water on the brain"; when something (a tumor) obstructs the circulation or drainage of CFS; it accumulates and exerts pressure on the brain |
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Term
| Describe the relationship between the optic nerve, optic chiasma, and optic tract. |
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Definition
| The axons of the retinal ganglion cells issue from the back of the eyeballs in the optic nerves. A the X-shaped optic chiasma fibers from the medial aspect of each eye cross over to the opposite side and then continue on via the optic tract. All play a role in vision. |
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Term
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Definition
| two large lobes of gray matter which mediate sensation, motor activities, learning and memory |
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Term
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Definition
| visual reflex centers, which coordinate head and eye movement when tracking a moving object |
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Term
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Definition
| grooves on the surface of the brain |
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Term
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Definition
| a thin membrane which separates the lateral ventricles |
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Term
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Definition
| a ridge of brain tissue which contains the somatosensory area |
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Term
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Definition
| a bulging brainstem region between the midbrain and medulla oblongata |
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Term
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Definition
| a small epithalamus structure that secretes melatonin to help regulate the sleep-wake cycle |
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Term
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Definition
| a groove that divides the occipital lobe from the parietal lobe |
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Term
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Definition
| area of the brain located between the diencephalon and pons that contains the corpora quadrigemina |
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Term
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Definition
| the most inferior part of the brainstem which houses autonomic centers involved in the control of heart rate, respiratory rate and blood pressure |
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Term
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Definition
| a deep groove which divides the cerebral hemispheres |
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Term
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Definition
| a groove that separates the temporal lobe from the parietal and frontal lobe |
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Term
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Definition
| auditory reflex centers, which are a part of the auditory relay from the hearing receptors to the sensory cotex |
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Term
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Definition
| elevated ridges of tissue on the surface of the brain |
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Term
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Definition
| the largest commissure, connecting the cerebral hemispheres |
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Term
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Definition
| four domelike projections on the midbrain |
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Term
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Definition
| the most superior portion of the brain |
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Term
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Definition
| a cauliflower-like structure dorsal to the pons and medulla, and involved in providing precise timing and pattern of skeletal muscle movement |
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Term
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Definition
| a groove that divides the frontal lobe from the parietal lobe |
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Term
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Definition
| a tree-like branching of cerebellar white matter |
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Term
| List and describe the 3 layers of the meninges |
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Definition
1. dura mater: "rough mother" the strongest meninx, 2-layered sheet of fibrous connective tissue
2. arachoid mater: middle meninx, forms a loose covering
3. pia mater: "gentle mother" clings tight to brain |
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