Human Anatomy and Physiology Answers

Which structure is bringing blood from the upper part of the body to the heart?

A. Inferior vena cava

B. Pulmonary veins

C. Superior vena cava

D. Aorta

E. Pulmonary artery

F. None of these

Blood being carried towards the heart is always oxygen-depleted.

True

False

What is the key difference between veins and arteries?

A. Veins carry oxygen-rich blood; arteries carry oxygen-depleted blood

B. Veins carry blood towards the heart; arteries carry blood away from the heart

C. Veins carry oxygen-depleted blood; arteries carry oxygen-rich blood

D. Veins carry blood away from the heart; arteries carry blood towards the heart

E. None of these choices is correct

Is it C?

In the sense-integrate-act loop, the brain is always where signals are integrated.

True

False

When the brain integrates signals from different sensory systems, all these signals receive equal weight in determining the actions & forming memories.

When the brain integrates signals from different sensory systems, all these signals receive equal weight in determining the actions & forming memories.

True

False

How is mean arterial pressure (MAP) calculated and why is it useful? ( short answer please)

What features of the respiratory system help protect it from the external environment? (Short answer please)

How is mean arterial pressure (MAP) calculated and why is it useful? ( short answer please)

What features of the respiratory system help protect it from the external environment? (Short answer please)

What characteristics of the respiratory system help produce efficient gas exchange in the lungs? (Short answer please)