Consider the following statements.

                   

(a) Occurs involuntarily and without conscious effort.
(b) At least no afferent and two efferent neuron required.
(c) Only motor neuron is involved in the action.
(d) Polysynaptic and conditional reflex.
(e) Regulated by the spinal cord.

Which of the above statements are correct for the reflex shown in the above figure?

1.  a and e

2.  b, c and d

3.  a, b, d and e

4.  a, b, c, d and e

Consider the characteristics of a certain part of the human brain:
I. It contains neurosecretory cells.
II. It is an important part of the limbic system.
III. It is a part of the diencephalons.

This part of the human brain is:

1. Hypothalamus

2. Medulla oblongata

3. Cerebellum

4. Amygdala

The resting axonal membrane of a neuron:

1. is not polarized

2. has an excess of anions on the outside

3. is more permeable to potassium ions than to sodium ions

4. cannot be excited by a stimulus

Injury localized to the hypothalamus would most likely disrupt:

1. short-term memory

2. co-ordination during locomotion

3. executive functions, such as decision making

4. regulation of body temperature

Mark the correct statement:

A diagram showing the axon terminal and synapse is given. Identify correctly at least two of A-D:

1. B- Synaptic connection; D- K⁺

2. A- Neurotransmitter; B- Synaptic cleft

3. C- Neurotransmitter; D- Ca⁺⁺

4. A- Receptor; C- Synaptic vesicles

A canal called the cerebral aqueduct passes through the:

1. Diencephalon

2. Midbrain

3. III ventricle

4. IV ventricle

The brain stem does not include:
1. medulla
2. pons
3. midbrain
4. cerebral cortex

The reflex arc ends at:
1. sensory neuron
2. motor neuron
3. effector
4. receptor

Which part of the brain is responsible for thermoregulation?

1. Medulla oblongata

2. Cerebrum

3. Hypothalamus

4. Corpus callosum