Human Body System- S7L2 b,c

What is the body's most important nonspecific defense?

• the skin

• permanent immunity

• cell-mediated immunity

• the inflammatory response

Which organ helps to maintain the dynamic equilibrium of the body by breaking down toxic substances?

• the stomach

• the adrenal gland

• the heart

• the liver

Which of the following best describes the role of the kidney in homeostasis?

• storing of urine

• producing urine at a constant rate

• adding proteins to the blood

• maintaining the water content of the blood

Which type of blood vessel carries blood toward the heart?

• arterioles

• arteries

• capillaries

• veins

Which type of structure is the heart?

• an organ system

• a zygote

• an organ

• a tissue

Which of the following includes the spinal cord?

• the peripheral nervous system (PNS)

• the central nervous system (CNS)

• the brain

• the skeletal system

In which part of the digestive system does food stay the longest amount of time?

• stomach

• small intestine

• mouth and esophagus

• large intestine

What is an example of the musculoskeletal system and the nervous system interacting to maintain homeostasis?

• The brain sends a message to move a muscle

• A leg muscle provides energy to the brain.

• A rib bone moves oxygen and glucose to the brain.

• The skull provides nutrients for brain growth and repair.

What is the primary role of the cardiovascular system in maintaining the body?

• It signals nervous responses and hormones.

• It controls growth and sexual reproduction.

• It provides cells with nutrients and oxygen, while it removes waste.

• It breaks down food and carbon dioxide, while it excretes mucus.

Which of the following is part of the digestive system?

• diaphragm

• esophagus

• aorta

• trachea