L3 A&P Mock 3

Which heart valves prevent back flow of blood into the atria?

• Pulmonary

• Aortic

• Atrioventricular

• Sinoatrial

Where does the left coronary artery supply blood to?

• A. Left ventricle

• B. Right ventricle

• C. Cerebellum

• D. Cerebral cortex

What initiates the process of damage to arteries?

• A. LDL cholesterol

• B. HDL cholesterol

• C. Inflammation

• D. Antioxidants

Which of the following will significantly increase systolic and diastolic blood pressure?

• A. Isometric contractions

• B. Walking

• C. Swimming

• D. Circuit weight training

What is a risk of regular aerobic endurance training?

• A. Tendonitis

• B. Hypertrophy

• C. Chronic fatigue syndrome

• D. Osteoporosis

What does hypertension increase the risk of during exercise?

• A. Hyperglycemia

• B. Hypoglycemia

• C. Myocardial infarction

• D. Liver damage

What substance is found in large quantities in type 1 muscle fibres but not in type 2b muscle fibres?

• Haemoglobin

• Myoglobin

• Sarcoplasm

• Calcium

In the sliding filament theory which molecule provides the energy to enable myosin to pull on actin?

• Creatine phosphate

• Adenosine triphosphate

• Adenosine diphosphate

• Calcium phosphate

Which type of muscle fibres contain the highest number of mitochondria?

• Type 1

• Type 2a

• Type 2b

• Fast twitch

Which of the following is an origin of the triceps?

• Clavicle

• Radius

• Ulna

• Humerus