Anatomy and Physiology end of unit

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What is the function of a ligament?
Attach bone to bone
1 of 11
What happens to the expiratory reserve volume when an athlete begins to run?
It decreases
2 of 11
What is the function of leucocytes?
To protect the body from infection
3 of 11
Identify the parts labelled A and B
A = Muscle fibre
B = Actin
4 of 11
Describe the sequence of excitation of the heart muscle
SV node is generated by impulse > Impulse travels across atria to AV node > Impulse travels to Bundle of His > Travels from Bundle of His to Purkinje fibres > Travels to ventricular walls
5 of 11
Identify the main fuel source of energy for the brain
Glucose
6 of 11
Describe the nervous control of ventilation during exercise
The nervous system responds by increasing the depth and rate of breathing because it responds to oxygen. The respiratory centre is found in the medulla oblongata. The chemoreceptors detect pH levels decreasing because the blood becomes more acidic. The re
7 of 11
Explain the relationship between the hypothalamus and pituitary gland, with specific reference to effective bodily functions
The hypothalamus is a part of the brain that sends messages to the pituitary gland to maintain homeostasis. Growth hormones are ejected from the hypothalamus to the pituitary gland to regulate growth
8 of 11
Explain the phenomenon of cardiovascular drift and one method of reducing it
Cardiovascular drift happens during prolonged sub maximal exercise. It occurs due to a decrease in blood volume due to sweat, so the blood becomes more viscous. Stroke volume decreases and heart rate increases to retain cardiac output. Vasodilation occurs
9 of 11
Distinguish the characteristics of smooth and cardiac muscle
Smooth muscles are found in hollow organs and in blood vessels. Cardiac muscle is found in the heart
10 of 11
Explain the function of the diencephalon
The thalamus and hypothalamus form to make the diencephalon. The thalamus receives sensory input, and regulates it, which is important for motor control. The thalamus also has functions of consciousness, emotions, and regulation of sleep. The hypothalamus
11 of 11

Other cards in this set

Card 2

Front

What happens to the expiratory reserve volume when an athlete begins to run?

Back

It decreases

Card 3

Front

What is the function of leucocytes?

Back

Preview of the front of card 3

Card 4

Front

Identify the parts labelled A and B

Back

Preview of the front of card 4

Card 5

Front

Describe the sequence of excitation of the heart muscle

Back

Preview of the front of card 5
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