Biology Test Biology Anatomy and Physiology 2 — Questions and Answers
Question 1: Which type of muscle tissue is found in the walls of hollow organs such as the stomach and bladder?
- Cardiac muscle
- Skeletal muscle
- Smooth muscle (Correct answer)
- Striated muscle
Correct answer: Smooth muscle
Smooth muscle is involuntary and lines hollow organs, controlling movements like peristalsis and urination.
Question 2: What is the primary function of the lymphatic system?
- Transport oxygen to tissues
- Return interstitial fluid to the bloodstream (Correct answer)
- Produce red blood cells
- Regulate blood pressure
Correct answer: Return interstitial fluid to the bloodstream
The lymphatic system collects excess interstitial fluid and returns it to venous circulation, also playing a key role in immunity.
Question 3: Which bone marking is a rounded projection that articulates with another bone, forming a joint?
- Foramen
- Condyle (Correct answer)
- Fossa
- Crest
Correct answer: Condyle
A condyle is a smooth, rounded articular surface at the end of a bone that forms part of a synovial joint.
Question 4: The sinoatrial (SA) node is located in which chamber of the heart?
- Left ventricle
- Right ventricle
- Left atrium
- Right atrium (Correct answer)
Correct answer: Right atrium
The SA node, the heart's natural pacemaker, is embedded in the posterior wall of the right atrium near the opening of the superior vena cava.
Question 5: Which layer of the skin contains sweat glands, hair follicles, and blood vessels?
- Epidermis
- Hypodermis
- Dermis (Correct answer)
- Stratum corneum
Correct answer: Dermis
The dermis is the thick middle layer of skin housing glands, follicles, sensory receptors, and vascular networks.
Question 6: What term describes the movement of a body part away from the midline of the body?
- Adduction
- Abduction (Correct answer)
- Flexion
- Rotation
Correct answer: Abduction
Abduction moves a limb or part laterally away from the body's midline, as when raising an arm to the side.
Question 7: Which organelle is responsible for producing ATP through cellular respiration?
- Ribosome
- Golgi apparatus
- Mitochondrion (Correct answer)
- Lysosome
Correct answer: Mitochondrion
Mitochondria carry out oxidative phosphorylation to generate the majority of a cell's ATP supply.
Biology Test Biology Anatomy and Physiology 2
Which type of muscle tissue is found in the walls of hollow organs such as the stomach and bladder?