Question 1

Which image best represents the skeletal system, and what is its primary function?

Accepted Answer

Image (b); its primary function is to protect and support body organs, and provide a framework for muscle movement.

Question 2

Which image best illustrates the concept of positive feedback in homeostasis?

Accepted Answer

The sequence of images showing a blood vessel break, platelets adhering, and a plug forming (last four images).

Question 3

Which organ system is depicted in image (h), and what is its main function?

Accepted Answer

Respiratory system; keeps blood supplied with oxygen and removes carbon dioxide.

Question 4

Which image best represents the nervous system, and what is a key function of this system?

Accepted Answer

Image (d); it detects and processes sensory information and activates body responses.

Question 5

Which image best illustrates the cardiovascular system, and what is its main function?

Accepted Answer

Image (f); transports blood, which carries oxygen, carbon dioxide, nutrients, and wastes.

Question 6

Which image best represents the endocrine system, and what is its primary function?

Accepted Answer

Image (e); glands secrete hormones that regulate growth, reproduction, and metabolism.

Question 7

Which image best represents the urinary system, and what is its main function?

Accepted Answer

Image (j); eliminates nitrogenous wastes and regulates water, electrolyte, and acid-base balance.

Question 8

Which image best represents the muscular system, and what is one of its main functions?

Accepted Answer

Image (c); allows manipulation of the environment, locomotion, and produces heat.

Question 9

Which image best represents the lymphatic system, and what is its main function?

Accepted Answer

Image (g); returns fluid leaked from blood vessels to blood and houses immune cells.

Question 10

Which image best represents the digestive system, and what is its main function?

Accepted Answer

Image (i); breaks down food into absorbable units and eliminates indigestible foodstuffs as feces.

Question 11

Which image best represents the female reproductive system, and what is one of its main functions?

Accepted Answer

Image (l); produces eggs, supports embryo/fetus until birth, and produces milk for infant.

Question 12

Which image best represents the male reproductive system, and what is one of its main functions?

Accepted Answer

Image (k); produces sperm and delivers gametes to female reproductive tract.

Question 13

Which image best represents the integumentary system, and what is one of its main functions?

Accepted Answer

Image (a); forms the external body covering and protects deeper tissues from injury.

Question 14

Which image sequence best illustrates the negative feedback mechanism for body temperature regulation?

Accepted Answer

The image with a balance and two people, one in cold and one in hot conditions (image 13).

Question 15

Which organ system is responsible for producing movement, maintaining posture, and generating heat?

Accepted Answer

Muscular system

Question 16

Which organ system is primarily responsible for defending the body against pathogens and returning leaked fluids to the blood?

Accepted Answer

Lymphatic system

Question 17

Which organ system is responsible for removing carbon dioxide from the body and delivering oxygen to the blood?

Accepted Answer

Respiratory system

Question 18

Which organ system is responsible for controlling water balance in the body and removing waste from the blood?

Accepted Answer

Urinary system

Question 19

Which organ system is responsible for secreting hormones that regulate processes such as growth, reproduction, and metabolism?

Accepted Answer

Endocrine system

Question 20

Which organ system is responsible for supporting the body and providing a framework for muscle movement?

Accepted Answer

Skeletal system

Chapter 1: The Human Body – An Orientation

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