L9: SKELETON MUCSLE AND MOVEMENT

Question 1

Whats another name for the rare brittle bone disorder?

Answer 1

osteogenesis imperfecta

Question 2

What is osteogenesis imperfecta?

Answer 2

-a genetic condition in which the gene for type 1 collagen is broken
-results in the glue of your bones not working

Question 3

What are some of the challenges faced by a human that are not faced by an Ameoba?

Answer 3

• after reproduction, multicellular organisms must undergo development
• multicellular organisms must have ways of transporting materials to other cells
• cells must communicate and coordinate ac

Question 4

Are cells in a multicellular organism specialized?

Answer 4

yes cells are specialized to only form a few functions

Question 5

T/F: Specialized cells can survive as individuals

Answer 5

False, they cannot survive as individuals

Question 6

4 Basic Cell Types in Animals

Answer 6

1. Epithelial cells
2. Connective cells
3. Muscle cells
4. Nerve cells

Question 7

Epithelial cells ….

Answer 7

form the surface of animals and line their body cavities

Question 8

Connective cells

Answer 8

produce the matrix that connects and supports other cells

Question 9

Muscle cells….

Answer 9

contract to give animals the ability to move

Question 10

Nerve cells…

Answer 10

transmit nerve signals throughout the body

Question 11

What is the main support system found in animals?

Answer 11

Skeleton

Question 12

What is an Exoskeletons?

Answer 12

the skeleton is found on the outside of the body

Question 13

What does a skeleton for the human?

Answer 13

• supports our body and gives it shape

Question 14

What is the major component of the skeleton?

Answer 14

Bone tissue

Question 15

What is bone tissue?

Answer 15

connective cells surrounded by a calcium and collagen matrix

Question 16

What’s the function of calcium minerals?

Answer 16

provides rigidity and strength

Question 17

Function of Collagen….

Answer 17

• a protein
• provides resistance to tension

Question 18

Connective cells found in bones are called…

Answer 18

osteocytes

Question 19

Function of marrow….

Answer 19

-source of blood cells and other important cells

Question 20

T/F: Bones remodel over time

Answer 20

true

Question 21

What part of an adult diet is essential for remodelling?

Answer 21

calcium

Question 22

A high calcium diet allows bones to change in ——- in response to:

Answer 22

• change in thickness
  -exercise
  -hormones

Question 23

What is cartilage?

Answer 23

-cells that produce collagen
- supports and supplements bone

Question 24

What are ligaments?

Answer 24

flexible sheet of tissue
join bone to bone

Question 25

What part of the human body use hydrostatic skeletons?

Answer 25

-our tongue

Question 26

Hydrostatic skeletons....

Answer 26

use fluid pressure to become ridgid

Question 27

What parts of the skeleton allow us to move?

Answer 27

joints allow the animal skeletons to bend

Question 28

What are joints?

Answer 28

breaks in the skeletal system

Question 29

If our skeleton had no joints what would happen?

Answer 29

skeletons without joints would severely limit movement

Question 30

Tendons

Answer 30

connect bone to muscle

Question 31

Ligaments

Answer 31

connect bone to bone

Question 32

Cartilage Disk are ...

Answer 32

cushions impacts

Question 33

Synovial sacs:

Answer 33

contains fluid to lubricate joint