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Anatomy & Physiology Level III Mock Paper Practice Test quiz 17

Anatomy & Physiology Level III Mock Paper Practice Test

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Quiz Questions And Answers

As the agonist contracts, the antagonist muscle relaxes to allow movement. What is this occurrence known as?

Golgi tendon organ
Positive stretch reflex
Reciprocal inhibition
Inverse stretch reflex

Which of the following statements about type 1 muscle fibres is true?

They have few mitochondria
They are slower to fatigue than type 2
They utilise the anaerobic energy system
They are white in colour

What is the function of muscle spindle cells?

They respond to excessive contraction of the muscle
They respond to excessive lengthening of the muscle
They respond to excessive heat within the muscle
They respond to excessive lactic acid within the muscle

What is the role of a motor unit?

To contract a single muscle in response to a nerve impulse
To relax a group of muscle fibres in response to a nerve impulse
To contract a group of muscle fibres in response to a nerve impulse
To relax a single muscle fibre in response to a nerve impulse

Where are catecholamines produced?

Adrenal glands
Pancreas
Thyroid gland
Ovaries

Improved neuromuscular efficiency can lead to which of the following benefits?

Faster reaction times
Reduced risk of coronary heart disease
Increased bone density
Better cardiovascular fitness

What term means: 'maintaining balance or returning a system to functioning within its normal range'?

Homeostasis
Glycolysis
Hypertension
Metabolism

Which of the following is a neuromuscular adaptation associated with training?

Reduced frequency of nerve impulses to motor units
Increased need for conscious control of movement
Better inter-muscular coordination during movement
Unsynchronised recruitment of motor units

Which hormone causes the conversion of glycogen to glucose to raise blood sugar level?

Testosterone
Glucagon
Oestrogen
Insulin

Which of the following best describes onset of blood lactate accumulation (OBLA)?

The intensity at which lactate is being produced in the muscles faster than it can be cleared
The intensity at which lactic acid in the muscles reduces and the aerobic system starts to contribute energy.
The intensity at which the lactic acid system provides all of the energy being used.
The intensity at which lactate is first produced in the muscles.
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