IB SEHS Core Topics No3 Revision 1.0 to 6.0 N16

What type of bones are the phalanges?

• Flat bones

• Long bones

• Short bones

• Irregular bones

What is the definition of the term insertion of a muscle?

• The attachment of a muscle tendon to a moveable bone

• The attachment of a muscle tendon to a stationary bone

• A muscle contraction where there is movement at a joint

• A muscle contraction where there is no movement at a joint

Which muscle is on the anterior region of the body?

• Soleus

• Pectoralis

• Biceps femoris

• Latissimus dorsi

What are the principal structures of the ventilatory system?

• Mouth, trachea, ribs, intercostal muscles

• Nose, pharynx, aorta, diaphragm

• Nose, trachea, bronchioles, alveoli

• Mouth, larynx, diaphragm, lungs

What are the functions of the nose during inspiration?

I. To moisten the air

II. To diffuse oxygen from the air

III. To filter the air

• I and II only

• I and III only

• II and III only

• I, II and III

Which combination is used to calculate vital capacity?

• Total lung capacity + expiratory reserve volume + tidal volume

• Total lung capacity + residual volume + expiratory reserve volume

• Inspiratory reserve volume + expiratory capacity + residual volume

• Inspiratory reserve volume + tidal volume + expiratory reserve volume

What is the relationship between heart rate, cardiac output and stroke volume?

• Cardiac output = stroke volume x heart rate

• Cardiac output = stroke volume + heart rate

• Cardiac output = stroke volume − heart rate

• Cardiac output = stroke volume ÷ heart rate

What percentage of oxygen in the blood is transported by hemoglobin as oxyhemoglobin within red

blood cells?

• 68 %

• 95 %

• 98.5 %

• 99.5 %

Which cardiovascular adaptions are a result of endurance exercise training?

I. Increased stroke volume

II. Lower resting heart rate

III. Increased exercising heart rate

• I and II only

• I and III only

• II and III only

• I, II and III

Which is a micronutrient?

• Lipid

• Fibre

• Water

• Protein