Neural and Chemical Coordination — Practice

Question 1

The part of a neuron that carries impulses away from the cell body is the

Accepted Answer

A

Question 2

The resting membrane potential of a neuron is about

Accepted Answer

A

Question 3

For each cycle, the sodium–potassium pump moves

Accepted Answer

A

Question 4

The depolarisation (rising) phase of the action potential is caused by the

Accepted Answer

A

Question 5

Release of neurotransmitter at the axon terminal is triggered by the entry of

Accepted Answer

A

Question 6

A nerve impulse crosses a chemical synapse in one direction only because

Accepted Answer

A

Question 7

Balance of the body and coordination of muscular movement are controlled by the

Accepted Answer

A

Question 8

The vital centres controlling heart rate, breathing and blood pressure lie in the

Accepted Answer

A

Question 9

The gland called the 'master gland' because it controls several other endocrine glands is the

Accepted Answer

A

Question 10

Excess secretion of growth hormone in an adult causes

Accepted Answer

A

Question 11

The element essential for the synthesis of thyroxine is

Accepted Answer

A

Question 12

Which pair correctly matches hormone to its effect on blood calcium?

Accepted Answer

A

Question 13

The 'fight-or-flight' emergency hormone secreted by the adrenal medulla is

Accepted Answer

A

Question 14

Insulin, which lowers blood glucose, is secreted by the

Accepted Answer

A

Question 15

ADH and oxytocin are

Accepted Answer

A

Practice — Neural and Chemical Coordination