2. Match each of the following descriptions with the correct brain structure(s)

Question

2. Match each of the following descriptions with the correct brain structure(s) 1. pons 2. thalamus 3. cerebellum 4. hypothalamus 5. cerebral aqueduct 6. medulla oblongata 7. midbrain 8. epithalamus 9. cerebrum 10. choroid plexus a. houses the corpora quadrigemina b. components of the diencephalon c. connects the third and fourth ventricles d. continuous with the spinal cord e. produces cerebrospinal fluid f. components of the brainstem major homeostatic organ h. contains Broca's area structure from which pineal gland extends contains lateral ventricles j, --k. contains arborvitae PRE-LAB Activity 2: Electroencephalography in a Human Subject UsingBIOPAC How many electrodes are attached to the scalp to record the EEG? c. 4 a. b. 3 2. The recording of the brain's activity obtained by using electrodes is called a. electroencephalography b. an electrocardiogram. c. electromyography d. None of these is correct. 302

Explanation / Answer

a) Midbrain

Corpora quadrigemina are 4 colliculi (2 inferior & 2 superior) located on midbrain.

b) Diencephelon consists of Thalamus, Subthalamus, Hypothalamus and Epithalamus.

c) Cerebral aqueduct also called aqueduct of Sylvius connects third and fourth ventricles.

d) Medulla Oblongata

Medulla contains cardiac, resiratory, vomiting and vasomotor centres.

e) Choroid plexus produces CSF from arterial blood. Small amount of CSF is also produced by ependymal cells.

f) Medulla oblongata, Pons and Midbrain

g) Hypothalamus acts like a bridge between nervous system and endocrine system and plays an important role in homeostasis.

h) Cerebrum

Broca's area located in cerebral cortex is responsible for speech production.

I) Hypothalamus

Pineal gland produces melatonin.

j) Cerebrum

Lateral ventricles contain CSF

k) Cerebellum

Arbor vitae is white matter of cerebellum and looks like tree.

Activity 2

1. c) 4

EEG involves use of 4 electrodes.

2. a) electroencephalography

EEG is a noninvasive test that records electrical activity of brain. In the process electrodes are attached to scalp and the activity is read as wavy lines on EEG recording.

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