Function Of A Synapse Quiz

1. The muscular and nervous system work together to?

Control and coordinate movement

Regulate body changes

Protect

Reproduce

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Explanation

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2. The part of the nervous syste which works cloesly with the respiratory system for inhalation is the?

Cerebrum

Cerebellum

Medulla oblongata

Spinal Cord

The medulla oblongata is the correct answer because it is the part of the brainstem that controls vital functions such as breathing and heart rate. It works closely with the respiratory system to regulate the process of inhalation. The medulla oblongata receives signals from the respiratory centers in the brain and sends out nerve impulses to the muscles involved in inhalation, allowing for the intake of oxygen.

Explanation

The medulla oblongata is the correct answer because it is the part of the brainstem that controls vital functions such as breathing and heart rate. It works closely with the respiratory system to regulate the process of inhalation. The medulla oblongata receives signals from the respiratory centers in the brain and sends out nerve impulses to the muscles involved in inhalation, allowing for the intake of oxygen.

3. Which one of the following is not involved with the reflex arc?

The spinal cord

A sensory nerve

The heart

A motor nerve

The heart is not involved in the reflex arc. The reflex arc is a neural pathway that allows for a rapid, automatic response to a stimulus without conscious thought. It typically involves a sensory nerve that detects the stimulus, the spinal cord which processes the information, and a motor nerve that carries out the response. The heart, on the other hand, is not directly involved in this process as it is not responsible for detecting or carrying out reflexive responses.

Explanation

The heart is not involved in the reflex arc. The reflex arc is a neural pathway that allows for a rapid, automatic response to a stimulus without conscious thought. It typically involves a sensory nerve that detects the stimulus, the spinal cord which processes the information, and a motor nerve that carries out the response. The heart, on the other hand, is not directly involved in this process as it is not responsible for detecting or carrying out reflexive responses.

4. Which of the following is a function of the parasympathetic nervous system?

To reduce the rate and force of heart contraction.

To rise blood pressure.

To constrict the blood vessels in the digestive system.

To dilate the blood vessels.

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5. Which of the following is an inflammation caused by infecion or injury?

Cerebral palsy

Parkinson's disease

Multiple sclerosis

Neuritis

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6. What is the function of a synapse?

To insulate and protect axons

To help insulate axons

To speed up the passage of nerve impulses along the fibre.

To enable a verve impulse to be transmitted from one neuron to another.

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7. Which part of the brain is respinsible for memory?

Medullar oblongata

Cerebellum

Cerebrum

Pons varolii

The cerebrum is responsible for memory. It is the largest part of the brain and is involved in higher cognitive functions, including memory storage and retrieval. The cerebrum consists of two hemispheres and is divided into different regions, such as the hippocampus and amygdala, which play crucial roles in the formation and consolidation of memories. Therefore, the cerebrum is the correct answer for the part of the brain responsible for memory.

Explanation

The cerebrum is responsible for memory. It is the largest part of the brain and is involved in higher cognitive functions, including memory storage and retrieval. The cerebrum consists of two hemispheres and is divided into different regions, such as the hippocampus and amygdala, which play crucial roles in the formation and consolidation of memories. Therefore, the cerebrum is the correct answer for the part of the brain responsible for memory.

8. The sympatic nervous system affects the heart by?

Acceleration the action of the heart.

Constricting the flow of blood in the heart.

Slowing down the action of the heart.

Lowering blood pressure.

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9. What is the outer membrane of the meninges called?

Dura mater

Pia mater

Arachoid mater

Periosteum

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10. How many pairs of spinal nerves are there?

27

30

31

33

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11. Neuralgia can be defined as?

Shooting pains along the course of a nerve.

Pain down the back and outside of the thight.

Disease of the basal ganglia.

Paralysis or weakness of one side of the face.

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12. The sympathetic nervous system affects the skin by?

Dilating blood vessels

Decreasing Sweating

Increasing sweating

Relaxing the erector pili muscles in the skin

The sympathetic nervous system affects the skin by increasing sweating. This is because the sympathetic nervous system is responsible for the body's "fight or flight" response, which prepares the body for action in response to a perceived threat or stressor. One way it does this is by increasing sweating, which helps to cool the body down during times of increased physical activity or stress.

Explanation

The sympathetic nervous system affects the skin by increasing sweating. This is because the sympathetic nervous system is responsible for the body's "fight or flight" response, which prepares the body for action in response to a perceived threat or stressor. One way it does this is by increasing sweating, which helps to cool the body down during times of increased physical activity or stress.

13. What is the function of an axon?

To help regenerate nerve cells.

To send impulses to the cell body.

To send impulses away from the cell body

To act as a chemical messenger allowing an impulse to be sent.

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14. What is the cause of multiple sclerosis?

Damage to the basal ganglia of the brain.

Deterioration of the motor neurones in the body.

Loss of the protective myelin sheath from nerve fibres.

Paralysis of the face caused by injury or infetion of the facial nerve.

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15. What is the effect of the neuritis?

Tremors and rigidity in muscles.

Pain along the lenght of the nerve.

Lack of control over the motor system of the body.

Muscular weaknees, loss of muscular coordination, problems with skin sensation, speech and vision.

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16. The nervous system overworks in times of stress causing?

Sciatica

Decreased heart rate

Low blood pressure

Muscle tension

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17. How many pairs of lumbar nerves are there?

5

4

12

8

There are five pairs of lumbar nerves in the human body. The lumbar nerves are the largest nerves in the lumbar region of the spine and they control the muscles and sensory information in the lower back and legs. Each pair of lumbar nerves is numbered L1 to L5 and they play a crucial role in transmitting signals between the brain and the lower body.

Explanation

There are five pairs of lumbar nerves in the human body. The lumbar nerves are the largest nerves in the lumbar region of the spine and they control the muscles and sensory information in the lower back and legs. Each pair of lumbar nerves is numbered L1 to L5 and they play a crucial role in transmitting signals between the brain and the lower body.

18. Which of the following are motor nerves?

Trochear, abducent

Glossopharyngeal, olfactory

Trigeminal, vagus

Optic, vestibulocochlear

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19. The bracial nerves supply the?

Muscles of the neck, shoulder and skin.

Chest muscles and the main part of the abdominal wall.

Muscles from the base of the neck in the fingertips and skin.

Skin and muscles of the lower abdomen, thights and groin.

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20. Which one of the following carnial nerves is not onvolved with the parasympathetic nervous system?

Hypoglossal

Vagus

Facial

Glossopharyngeal

The hypoglossal nerve is not involved with the parasympathetic nervous system. The hypoglossal nerve controls the muscles of the tongue and is responsible for movements such as swallowing and speech. The parasympathetic nervous system, on the other hand, is responsible for regulating involuntary actions such as digestion, heart rate, and glandular secretion.

Explanation

The hypoglossal nerve is not involved with the parasympathetic nervous system. The hypoglossal nerve controls the muscles of the tongue and is responsible for movements such as swallowing and speech. The parasympathetic nervous system, on the other hand, is responsible for regulating involuntary actions such as digestion, heart rate, and glandular secretion.

21. What is the function of the facial carnial nerve?

To supply the muscles which move the eyes.

To supply the muscles which move the eyeballs

To transmit impulses from the taste buds.

To supply the muscles of the tongue enabling it to move.

The facial cranial nerve is responsible for transmitting impulses from the taste buds. This nerve carries sensory information from the taste buds located on the tongue and transmits it to the brain. It plays a crucial role in the sense of taste and allows us to perceive different flavors.

Explanation

The facial cranial nerve is responsible for transmitting impulses from the taste buds. This nerve carries sensory information from the taste buds located on the tongue and transmits it to the brain. It plays a crucial role in the sense of taste and allows us to perceive different flavors.