Free CCBMA Anatomy and Physiology Questions and Answers — Questions and Answers
Question 1: Which chamber of the heart receives deoxygenated blood from the body?
- Left atrium
- Right atrium (Correct answer)
- Left ventricle
- Right ventricle
Correct answer: Right atrium
The right atrium is the receiving chamber for deoxygenated blood returning from the systemic circulation via the superior and inferior vena cava. From there, the blood moves to the right ventricle to be pumped to the lungs for oxygenation.
Question 2: The patella is commonly known as the:
- Collarbone
- Shin bone
- Kneecap (Correct answer)
- Shoulder blade
Correct answer: Kneecap
The patella is a sesamoid bone, which is a bone embedded within a tendon or muscle. It is located at the front of the knee joint, where its primary function is to protect the joint and improve the leverage of the quadriceps muscle.
Question 3: Which gland is known as the "master gland" because it regulates the activity of other endocrine glands?
- Thyroid gland
- Adrenal gland
- Pancreas
- Pituitary gland (Correct answer)
Correct answer: Pituitary gland
The pituitary gland, located at the base of the brain, is called the master gland because it produces hormones that control many functions of other endocrine glands. It regulates the thyroid, adrenals, and reproductive glands, among others.
Question 4: The outermost layer of the skin is called the:
- Dermis
- Epidermis (Correct answer)
- Hypodermis
- Subcutaneous layer
Correct answer: Epidermis
The epidermis is the most superficial layer of the skin. It provides a waterproof barrier and creates our skin tone. It is an avascular layer, meaning it does not contain blood vessels.
Question 5: Gas exchange in the lungs occurs in the:
- Bronchi
- Trachea
- Alveoli (Correct answer)
- Larynx
Correct answer: Alveoli
The alveoli are tiny, balloon-shaped air sacs at the very end of the respiratory tree. They are the primary sites of gas exchange of oxygen and carbon dioxide between the lungs and the bloodstream through a process called diffusion.
Question 6: The primary function of the large intestine is:
- Absorption of nutrients
- Production of bile
- Absorption of water (Correct answer)
- Digestion of proteins
Correct answer: Absorption of water
While most nutrient absorption occurs in the small intestine, the large intestine's main role is to absorb water from the remaining indigestible food matter. It then compacts the waste into feces before it is eliminated from the body.
Question 7: The part of the brain responsible for coordinating voluntary movements, posture, and balance is the:
- Cerebrum
- Cerebellum (Correct answer)
- Brainstem
- Medulla oblongata
Correct answer: Cerebellum
The cerebellum, located at the back of the brain, is crucial for motor control. It does not initiate movement but contributes to coordination, precision, and accurate timing of movements, resulting in smooth and balanced muscular activity.
Free CCBMA Anatomy and Physiology Questions and Answers
Which chamber of the heart receives deoxygenated blood from the body?