Bio- Ch.1- Les.2 Flashcards Preview

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Flashcards in Bio- Ch.1- Les.2 Deck (48):
1

The compact bone stores important minerals such as....

Calcium

2

Red marrow is found in bones, and has the function of------

Making blood cells

3

What are the main functions of the skeletal system

-supports the body
-protects internal organs
-makes blood cells
-stores minerals
-helps movement

4

What makes up the skeletal system

Bones
Ligaments
Cartilage

5

What makes up the axial skeleton

The skull
Vertebrae
Ribs

6

What is the axial skeletons function

It supports the bodys weight and protects important organs

7

What makes up the appendicular skeleton

Arms
Legs
Shoulders
Pelvis

8

What is the function of the appendicular skeleton

It allows most of the body's movement

9

Expalain why the body of a newborn has more bones than the body of an adult

As a child grows, some bones fuse together

10

What are ligaments

Ligaments allow movement, and hold bones together. They are the tough flexible strand of connective tissue.

11

What are cartilage

Cartilage is a strong, flexible, and smooth connective tissue found at the end of bones.
It allows bones to move smoothly across each other.

12

What are bones made of (in general)

Bones are hard organs made up of minerals and connective tissue

13

If you looked inside of a bone, you would notice two kinds of bone tissue. WhAt are they

Spongy bone
Compact bone

14

What is a spongy bones function

Provides most of the strength and support for the bone

15

What is a compact bone's function

Makes bones rigid and hard

16

The minerals in bones are deposited by bone cells called....

Osteoblasts

17

What is collagen (biological)

The protein the connective tissue in aboneis mostly made of

18

What are ligaments

Ligaments allow movement, and hold bones together. They are the tough flexible strand of connective tissue.

19

What are cartilage

Cartilage is a strong, flexible, and smooth connective tissue found at the end of bones.
It allows bones to move smoothly across each other.

20

What are bones made of (in general)

Bones are hard organs made up of minerals and connective tissue

21

If you looked inside of a bone, you would notice two kinds of bone tissue. WhAt are they

Spongy bone
Compact bone

22

What is a spongy bones function

Provides most of the strength and support for the bone

23

What is a compact bone's function

Makes bones rigid and hard

24

The minerals in bones are deposited by bone cells called....

Osteoblasts

25

What is collagen (biological)

The protein the connective tissue in aboneis mostly made of

26

What is a joint?

The place where two or more bones connect.

27

Describe hinge joints

Hinge joints allow bones to move back and forth

28

Describe a gliding joint

Gliding joints allow a great deal of flexibility in many directions.

29

Describe a ball and socket joint

Ball and socket joints allow one of the bones of the joint to rotate in a large circle

30

What is osteoporosis?

Osteoporosis is a disease that causes bone tissue to become thin.

The bones become weak and break easily.

This occurs when adults dont get enough calcium in their diets

31

What is a sprain

A sprain is an injury to a ligament that can be caused by stretching a joint too far. The tissues in a sprained ligament can tear, so they become swollen and painful to move

32

What is muscle tissue?

Muscle is the tissue that contracts and relaxes, making movement possible. Muscle tissue is made up of muscle cells.

33

How do muscles make movement possible?

By contracting and relaxing

34

What are the three kinds of muscle tissue?

- smooth muscle
- cardiac muscle
-skeletal muscle

35

What kind(s) of muscle tissue is is involuntary?. Why is it named as 'voluntary'

The skeletal muscle tissue is voluntary.
It is voluntary because you We are able to control it.

36

What kind(s) of muscle tissue is involuntary. Why is it called involuntary

Smooth muscle and cardiac muscle are involuntary.

They are involuntary because we are not able to control them.

37

How do the three muscle tissue types look simular and different?

Cardiac and skeletal muscles look similar because they are both striped. Cardiac is branched while skeletal is not. Smooth muscle cells are not striped, they are spindle shaped.

38

Smooth muscle is found in.....

Internal organs and blood vessels.

39

Cardiac muscle makes up the .....

Heart

40

The skeletal muscle allows you to ............

Move

41

What is the main function of the smooth muscle?

It helps move materials through the body

42

What is the connection between smooth muscle and the digestive system?

Smooth muscle movement in your digestive system helps move food in your intestines

43

Complete:

In order to supply lots of energy to cells, cardiac muscle cells contain many -----------

Mitochondria

44

What is a tendon?

A tendon is the tough strand of tissue that connects a tendon to a bone.

45

COMPLETE

When a muscle contracts or shortens ....(what happens)

The attached bones are pulled closer to each other

46

Explain how do muscles work in pairs to move the body.

The flexor contracts and the extensor relaxes to bend a joint.

The extensor contracts and the flexor relaxes to straighten a joint.

For ex: biceps and triceps

47

A stain is....

A muscle injury in which a muscle is overstretched or torn.

48

What is muscle dystrophy

Its a hereditary disease that causes skeletal muscle to become weaker.