BIOS 251 Anatomy & Physiology I - Exam 1 Questions and Answers
and Explanations | Latest Chamberlain
1. The study of the internal and external structures of the human body and their
physical relationships is called:
A. Physiology
B. Homeostasis
C. Anatomy
D. Pathology
Answer: C
Explanation: Anatomy is the study of structure, whereas physiology is the study of
function.
2. Which level of organization consists of groups of similar cells working
together to perform a specific function?
A. Chemical level
B. Cellular level
C. Tissue level
D. Organ level
Answer: C
,Explanation: The tissue level is defined as a group of cells and their surrounding materials
working together to perform a particular function.
3. In a negative feedback loop, the component that receives and processes
information about a change is the:
A. Control center
B. Effector
C. Stimulus
D. Receptor
Answer: A
Explanation: The control center (usually the brain or endocrine gland) evaluates the input
and determines the appropriate response.
4. Which of the following is an example of a positive feedback loop?
A. Blood pressure regulation
B. Blood clotting
C. Body temperature regulation
D. Blood glucose concentration
Answer: B
Explanation: Positive feedback reinforces a stimulus, such as the cascade of events in
blood clotting or childbirth labor.
,5. A person standing upright, facing forward, with arms at the sides and palms
facing forward is in the:
A. Prone position
B. Supine position
C. Lateral position
D. Anatomical position
Answer: D
Explanation: The anatomical position is the standard reference position for all anatomical
descriptions.
6. The elbow is _______ to the wrist.
A. Distal
B. Lateral
C. Proximal
D. Medial
Answer: C
Explanation: Proximal means closer to the point of attachment or the trunk of the body.
7. Which plane divides the body into superior and inferior portions?
A. Sagittal plane
B. Transverse plane
, C. Frontal plane
D. Coronal plane
Answer: B
Explanation: A transverse (or horizontal) plane divides the body into top (superior) and
bottom (inferior) parts.
8. The heart is located within the _______ cavity.
A. Cranial
B. Vertebral
C. Pericardial
D. Abdominal
Answer: C
Explanation: The pericardial cavity specifically surrounds the heart within the thoracic
cavity.
9. The serous membrane that covers the surface of the lungs is the:
A. Parietal pleura
B. Visceral pericardium
C. Parietal peritoneum
D. Visceral pleura
Answer: D
and Explanations | Latest Chamberlain
1. The study of the internal and external structures of the human body and their
physical relationships is called:
A. Physiology
B. Homeostasis
C. Anatomy
D. Pathology
Answer: C
Explanation: Anatomy is the study of structure, whereas physiology is the study of
function.
2. Which level of organization consists of groups of similar cells working
together to perform a specific function?
A. Chemical level
B. Cellular level
C. Tissue level
D. Organ level
Answer: C
,Explanation: The tissue level is defined as a group of cells and their surrounding materials
working together to perform a particular function.
3. In a negative feedback loop, the component that receives and processes
information about a change is the:
A. Control center
B. Effector
C. Stimulus
D. Receptor
Answer: A
Explanation: The control center (usually the brain or endocrine gland) evaluates the input
and determines the appropriate response.
4. Which of the following is an example of a positive feedback loop?
A. Blood pressure regulation
B. Blood clotting
C. Body temperature regulation
D. Blood glucose concentration
Answer: B
Explanation: Positive feedback reinforces a stimulus, such as the cascade of events in
blood clotting or childbirth labor.
,5. A person standing upright, facing forward, with arms at the sides and palms
facing forward is in the:
A. Prone position
B. Supine position
C. Lateral position
D. Anatomical position
Answer: D
Explanation: The anatomical position is the standard reference position for all anatomical
descriptions.
6. The elbow is _______ to the wrist.
A. Distal
B. Lateral
C. Proximal
D. Medial
Answer: C
Explanation: Proximal means closer to the point of attachment or the trunk of the body.
7. Which plane divides the body into superior and inferior portions?
A. Sagittal plane
B. Transverse plane
, C. Frontal plane
D. Coronal plane
Answer: B
Explanation: A transverse (or horizontal) plane divides the body into top (superior) and
bottom (inferior) parts.
8. The heart is located within the _______ cavity.
A. Cranial
B. Vertebral
C. Pericardial
D. Abdominal
Answer: C
Explanation: The pericardial cavity specifically surrounds the heart within the thoracic
cavity.
9. The serous membrane that covers the surface of the lungs is the:
A. Parietal pleura
B. Visceral pericardium
C. Parietal peritoneum
D. Visceral pleura
Answer: D
