Q: Which of the following equations correctly represents the calculation of body surface area (BSA) using the Mosteller formula, which is important in clinical dosing?

$$BSA = \\sqrt{\\frac{height (cm) \\times weight (kg)}{3600}}$$

Q: Which of the following equations correctly represents the calculation of the resting membrane potential ($$V_m) $$using the Nernst equation for potassium ions ($$K^+$$)?

$$V_m = \\frac{RT}{zF} \\ln \\left( \\frac{[K^+]_{out}}{[K^+]_{in}} \\right)$$

Question 1

Which of the following best describes the primary function of the integumentary system?

Accepted Answer

Protection against environmental hazards and regulation of body temperature

Question 2

A patient presents with a homeostatic imbalance resulting in excessive sweating and dehydration. Which feedback mechanism is most likely malfunctioning?

Accepted Answer

Negative feedback loop regulating body temperature

Question 3

Which of the following equations correctly represents the calculation of body surface area (BSA) using the Mosteller formula, which is important in clinical dosing?

Accepted Answer

$$BSA = \sqrt{\frac{height (cm) \times weight (kg)}{3600}}$$

Question 4

A histology slide shows tissue with striations, multiple nuclei per cell, and voluntary control. Which tissue type is being observed?

Accepted Answer

Skeletal muscle

Question 5

Which of the following best explains the role of the effector in a negative feedback system?

Accepted Answer

Carries out the response to restore homeostasis

Question 6

A patient has a fracture in the diaphysis of the femur. Which type of bone tissue is primarily affected?

Accepted Answer

Compact bone

Question 7

Which of the following best describes the function of the sarcoplasmic reticulum in skeletal muscle contraction?

Accepted Answer

Stores and releases calcium ions ($$Ca^{2+}) to $$initiate contraction

Question 8

A person accidentally touches a hot stove and quickly withdraws their hand. Which part of the nervous system is primarily responsible for this rapid response?

Accepted Answer

Peripheral nervous system (reflex arc)

Question 9

Which of the following equations correctly represents the calculation of the resting membrane potential ($$V_m) $$using the Nernst equation for potassium ions ($$K^+$$)?

Accepted Answer

$$V_m = \frac{RT}{zF} \ln \left( \frac{[K^+]_{out}}{[K^+]_{in}} \right)$$

Question 10

A patient is unable to distinguish between hot and cold objects with their hands. Which sensory receptor type is most likely malfunctioning?

Accepted Answer

Thermoreceptors

Question 11

Which of the following best describes the function of osteoclasts in bone tissue?

Accepted Answer

Break down bone matrix and release calcium

Question 12

A patient with myasthenia gravis experiences muscle weakness due to a problem at the neuromuscular junction. Which neurotransmitter is most likely affected?

Accepted Answer

Acetylcholine

Question 13

Which of the following best explains why the knee joint is classified as a synovial joint?

Accepted Answer

It contains a fluid-filled cavity that allows for free movement

Question 14

A patient has a lesion in the occipital lobe of the brain. Which function is most likely to be impaired?

Accepted Answer

Vision

Question 15

Which of the following best describes the function of the autonomic nervous system?

Accepted Answer

Regulates involuntary functions such as heart rate and digestion

Question 16

A patient is diagnosed with osteoporosis, a condition characterized by decreased bone density. Which of the following is a likely consequence?

Accepted Answer

Increased risk of bone fractures

Question 17

Which of the following best explains the difference between positive and negative feedback mechanisms in homeostasis?

Accepted Answer

Negative feedback reverses the original stimulus, while positive feedback amplifies it

Question 18

A patient is unable to move their right arm after a stroke. Which part of the nervous system is most likely damaged?

Accepted Answer

Central nervous system (motor cortex)

Question 19

Which of the following best describes the function of the accessory organs in the integumentary system?

Accepted Answer

Assist in protection, temperature regulation, and sensation

Question 20

A patient presents with a homeostatic imbalance resulting in high blood calcium levels. Which hormone is most likely underactive?

Accepted Answer

Calcitonin

BIOL-201 Human Anatomy & Physiology I: Syllabus and Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards