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VBSC 421 Lab 22_ Brain

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VBSC 421 Lab 22: Brain
Cranial nerves - ANS-12 pairs of nerves that carry messages to and from the brain

Gyrus (gyri) - ANS-convolutions (ridges) of the brain

Sulcus (sulci) - ANS-crevices of the brain

Choroid plexus - ANS-A highly vascular portion of the lining of the ventricles that
secretes cerebrospinal fluid
- Consists of inner lining of the brain and vascular portion of the pia mater
- Site of the "blood brain barrier"

Telencephalon - ANS-cerebral hemispheres

Cerebral hemispheres - ANS-The right and left halves of the cerebrum.

Olfactory bulbs - ANS-lie above the cribiform plate of the ethmoid bone and receive
fibers from neurons in the nasal cavity
- part of olfactory nerve (I)
- carry sensory info to cerebrum

Lateral ventricles - ANS-Ventricles I and II in the left and right cerebral hemispheres
- Each is connected via a small canal to ventricle III (diencephalon)

Corpus callosum - ANS-unique to placental mammals, consists of nerve fibers for
communication between cerebral hemispheres

Septum pellucidum - ANS-separates the 2 lateral ventricles of the cerebrum

Diencephalon - ANS-thalamus, hypothalamus, epithalamus
*landmark = begins at optic chiasma*

Hypothalamus - ANS-brain region controlling the pituitary gland; located below the
thalamus (floor)

Thalamus - ANS-relays messages between lower brain centers and cerebral cortex;
made of 2 "ball-like" structures which meet in the middle (D)

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Study: Chem 1020.
Uploaded on: June 15, 2024
Number of pages: 4
Written in: 2023/2024
Type: Exam (elaborations)
Contains: Questions & answers

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