Human body systems

Question 1

How many main systems are in the body? What are they?

Answer 1

11 main systems keep our body functioning. Endocrine, Nervous, Respiratory, cardiovascular, Digestive, Lymphatic, reproductive, Urinary, Integumentary, Skeletal, muscular.

Question 2

Endocrine system

Answer 2

Responsible for coordination and chemical regulation of all body activities, produced hormones.

Question 3

Circulatory system/Cardiovascular system

Answer 3

Distributes oxygen and nutrients to cells of body, removes carbon dioxide from cells and takes it to lungs for removal. Circulation of blood.

Question 4

Excretory system/Urinary system

Answer 4

Responsible for removing dissolved wastes from your blood.

Question 5

Muscular system

Answer 5

Movement of the body, maintains posture and circulates blood, voluntary movement.

Question 6

Reproductive system

Answer 6

Sexual reproduction, all associated activities

Question 7

Digestive system

Answer 7

Physical and chemical breakdown of food to allow absorption of food.

Question 8

Lymphatic/immune system

Answer 8

Network of tissues and organs that get rid of body’s toxins waste and unwanted materials, fights infection.

Question 9

Skeletal system

Answer 9

Composed of bones and cartilage. Supports body, facilitates movement, protects internal organs and produces blood cells.

Question 10

Nervous system

Answer 10

Communication center, Coordinates all responses to outside environment. Processing center for sensory input and generate responses.

Question 11

Respiratory system

Answer 11

Responsible for body’s gas exchange.

Question 12

Integumentary system

Answer 12

Composed of skin and it’s appendages act to protect the body from damages such has water loss and protection from external environment.

Question 13

Which systems work with the digestive system, respiratory and circulatory?

Answer 13

Digestive: respiratory, circulatory

Respiratory: Digestive, circulatory

Circulatory: Digestive and Respiratory

Question 14

How is the digestive system supported by respiratory and circulatory?

Answer 14

Respiratory: Provides oxygen so the digestive system cells can digest food & Removes carbon dioxide and water that digestive cells produce as waste.

Circulatory: Moves oxygen and glucose around body so cells can do work & Moves cellular waste so they can be disposed

Question 15

How is the Respiratory system supported by digestive and circulatory?

Answer 15

Digestive: Provides diaphragm with nutrients to facilitate breathing

Circulatory: Moves oxygen and glucose around so respiratory cells can perform & removes cellular waste

Question 16

How is the circulatory supported by respiratory and digestive?

Answer 16

Respiratory: Provides oxygen that is carried by red blood cells to all parts of body & Removes carbon dioxide and water that heart cells produce as waste

Digestive system: Provides heart with nutrients so the heart can keep breathing

Question 17

How does structure affect function?

Answer 17

How something is arranged allows it to perform a specific job, if structure is altered, function is altered.

Question 18

Why are cells so small?

Answer 18

So they can maximize their ratio of SA: V. Mitochondria and chloroplasts have high ratios.

Smaller cells have a higher ratio which allows more things to pass thro the membrane.

Cells are small because they need to be able to get nutrients in and waste out quickly.

Question 19

what is surface area?

Answer 19

Area of the outside of the cell, called plasma membrane