A&P Week 1 MCQ

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Which type of feedback loop is primarily used in maintaining homeostasis?

Negative feedback (correct)

Positive feedback

Feedback loops are not involved in homeostasis

Both positive and negative feedback equally

In anatomical terms, what does 'proximal' refer to?

Point closer to the limb's attachment to the torso (correct)

Location closer to the mid-line division

Location toward the body's surface

Point farther away from the limb's attachment

What is the function of serous fluid within the serous cavity?

Delivers nutrients to organs

Prevents infection

Acts as a lubricant and shock absorber (correct)

Regulates body temperature

Which specific membrane surrounds the abdominal pelvic organs?

Peritoneum Signup and view all the answers

What distinguishes prokaryotic cells from eukaryotic cells?

Presence of a nucleus Signup and view all the answers

What is the main function of Adenosine Triphosphate (ATP) in cells?

Serve as an energy currency for cellular activities Signup and view all the answers

Which organ system is responsible for producing and secreting hormones for body function?

Endocrine System Signup and view all the answers

What is the primary function of the lymphatic system?

Moving fluid in tissues back to the blood Signup and view all the answers

What organ system is responsible for maintaining fluid levels in the body and eliminating urine?

Urinary System Signup and view all the answers

Which life function involves breaking down food into simple molecules for absorption into the bloodstream?

Digestion Signup and view all the answers

What is the role of negative feedback in regulating homeostasis?

Minimizing deviations from set points Signup and view all the answers

Which type of feedback loop leads to destabilization of the system by amplifying deviations?

Positive Feedback Signup and view all the answers

What is the function of the Golgi Apparatus in a cell?

Processing and packaging proteins for transport Signup and view all the answers

In animal cells, what is the main function of the cytoplasm and cytoskeleton?

Providing structure and support Signup and view all the answers

What distinguishes animal cells from plant cells?

Presence of a cell wall Signup and view all the answers

Which process involves the movement of molecules across a cell membrane without energy expenditure?

Facilitated diffusion Signup and view all the answers

What is the primary role of the Sodium-Potassium Pump in cells?

Regulating the passage of molecules in and out of the cell Signup and view all the answers

How does facilitated diffusion differ from active transport in terms of energy requirement?

Active transport requires energy while facilitated diffusion does not. Signup and view all the answers

Which organelle is known as the 'power plant' of the cell?

Mitochondria Signup and view all the answers

Why is it important to understand both anatomy and physiology?

To have a comprehensive understanding of the human body Signup and view all the answers

What is the primary purpose of homeostasis in living systems?

Maintaining stable internal conditions Signup and view all the answers

How does anatomy differ from physiology in terms of body understanding?

Anatomy defines what the body is, while physiology explains what it does Signup and view all the answers

Which level of organization comes right after tissues in the hierarchy of the human body?

Organs Signup and view all the answers

What is the importance of understanding directional terms in anatomy?

To aid in precise communication and understanding body part relationships Signup and view all the answers

How does the form of a cell or organ relate to its function according to the text?

The function of a cell or organ reflects its form Signup and view all the answers