lesson 4

Question 1

 skin, nails, and hair
 protects the body from mechanical injury, infection, and excessive heat and cold

Answer 1

. Integumentary

Question 2

.  skeletal, smooth, and cardiac muscle tissues
 provides movement, maintains posture

Answer 2

Muscular

Question 3

 bones and joints
 provides support for the body, protects delicate internal organs, and provides attachment sites for the organs

Answer 3

Skeletal

Question 4

 heart blood vessels, blood, lymph nodes and vessels, and lymphs
 transports nutrients, gases, hormones, and wastes

Answer 4

. Circulatory

Question 5

 brain, spinal cord, nerves, and sense organs
 relays electrical signals through the body that direct behavior and movement, and controls physiological
processes

Answer 5

Nervous

Question 6

 mouth, esophagus, stomach, liver, pancreas, small and large intestines, rectum, anus, and gallbladder breaks down food and absorbs nutrients necessary for growth and maintenance

Answer 6

Digestive

Question 7

 lungs, nose, mouth, trachea, larynx, alveoli, and bronchi
 facilitates the exchange of gases between the body and the environment

Answer 7

Respiratory

Question 8

 kidneys, urinary bladder, ureters, urethra, liver, lungs, and skin
 filters out cellular wastes, toxins, and excess water or nutrients

Answer 8

Excretory

Question 9

 hypothalamus, pituitary gland, thyroid gland, thymus gland, liver, pancreas, adrenal glands, para thyroid glands, and testes in males and ovaries in females
 relays chemical messages through the body to help control physiological processes

Answer 9

Endocrine

Question 10

 testes and penis in males, and ovaries and uterus in females
 produces cells and sex hormones that allow reproduction; sperm in males are produced to fertilize the egg in females
5 females have supporting organs for the developing embryo as well as

Answer 10

Reproductive

Question 11

 white blood cells, lymph nodes and vessels, and skin
 destroys and removes invading microbes and viruses from the body

Answer 11

Immune