Organization of the Human Body

Question 1

What are the four main tissue types?

Answer 1

Epithelial, Connective, Muscular, Nervous

Question 2

What does the epithelial tissue do?

Answer 2

Covers surfaces and protects

Question 3

What does the connective tissue do?

Answer 3

Holds the body together

Question 4

What does the muscular tissue do?

Answer 4

Allows the body to move

Question 5

What does the nervous tissue do?

Answer 5

Sends messages throughout the body, senses stimuli and rapidly transmits information.

Question 6

What is epithelial tissue?

Answer 6

Sheets of closely packed cells that cover body surfaces and line internal organic and cavities

Question 7

What is the most abundant tissue in most animals?

Answer 7

Skeletal (causes voluntary movements), Cardiac (pumps blood), Smooth (moves walls of internal organs, such as the intestines)

Question 8

What do neurons do?

Answer 8

Carry signals by conducting electrical impulses.

Question 9

What is an organ?

Answer 9

A collection of tissues joined together to serve a common function

Question 10

What does the integumentary system do?

Answer 10

• Barrier against infection
• Helps regulate temperature
• Removes waste
• Senses environment by touch
• Protects against UV rays

Question 11

What does the muscular system do?

Answer 11

• Connects to bones with tendons
• Allows body movement
• Pumps blood

Question 12

What does the skeletal system?

Answer 12

• Supports the body
• Protects internal organs
• Stores minerals
• Makes new blood cells

Question 13

What does the circulatory system?

Answer 13

• Circulates oxygen and CO2
• Circulates nutrients
• Aides in waste elimination
• Circulates blood cells

Question 14

What do capillaries do?

Answer 14

Bring nutrients and oxygen to the tissues and carries waste products away

Question 15

What does the respiratory system do?

Answer 15

• Exchanges carbon dioxide for oxygen

- Allows our bodies to convert glucose into energy

Question 16

What does the digestive system do?

Answer 16

Fuels the body with food

Question 17

What does the excretory system do?

Answer 17

Waste elimination

Question 18

What does endocrine system do?

Answer 18

Produces hormones that regulate sleep/wake cycles, metabolism, immune system, stress response, water elimination, calcium in blood, glucose in blood

Question 19

What does the lymphatic system do?

Answer 19

• Returns nutrient fluid, “lymph,” that has leaked from blood back to the circulatory system
• Lymph nodes filter this fluid and trap bacteria.
• Lymph circulates by osmotic pressure and nearby muscle contractions

Question 20

What does the thymus do?

Answer 20

Makes lymphocytes

Question 21

What does the spleen do?

Answer 21

Cleans blood and removes damaged red blood cells

Question 22

What does the nervous system do?

Answer 22

Controls and coordinates the internal and external functions/movements and responses of the body

Question 23

Types of Neurons

Answer 23

1. Sensory: from sense organs to spinal cord and brain
2. Motor: from brain and spinal cord to muscles and glands
3. Interneurons: connect sensory and motor neurons