Activity 4: Muscle Tissue and Examining Muscle Tissue Under the Microscope

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1

What is muscle tissue specialized to do, and what do they produce?

Specialized to contract and produces most types of body movement.

2

What are the 3 types of muscle tissue?

1. Skeletal muscle

2. Cardiac muscle

3. Smooth muscle

3

Skeletal muscle is attached to which specific feature of the body?

Skeleton

4

Skeletal muscle is under which type of control?

Conscious voluntary control

5

The contractions of skeletal muscle move which parts of the body?

The limbs and other body parts.

6

Cardiac muscle is found only in which organ?

The heart

7

As cardiac muscle contracts, what effect does it have on the heart?

The heart acts as a pump, propelling blood into the blood vessels.

8

Cardiac muscle cells fit together at what specific features?

Intercalated discs

9

Intercalated discs allow cardiac muscle to function effectively as what?

As a unit.

10

Cardiac muscle is under which type of control?

Involuntary control.

11

In term of cellular structure, skeletal muscle and cardiac muscle differ in what 2 ways?

How do they differ in type of control?

1. Skeletal muscle=comprised of non-branching, multinucleate (many nuclei per cell) cells.

2. Cardiac muscle=comprised of branching, uninucleate cells.

_________

Skeletal muscle=voluntary control, cardiac muscle=involuntary control

12

Smooth muscle is found mainly in the walls of hollow organs of what 4 specific body features?

1. Digestive organs

2. Urinary tract organs

3. Uterus

4. Blood vessels

13

The contractions of smooth muscle can do what 3 things?

1. Constrict the lumen (cavity) of an organ.

2. Dilate the lumen (cavity) of an organ.

3. Propel substances along pathways.

14

Smooth muscle is under which type of control?

Involuntary control.

15

Which of the muscle types have striations, and which doesn't?

Skeletal and cardiac muscle do, while smooth muscle does not.

16

What are the 5 functions of skeletal muscle?

1. Voluntary movement

2. Locomotion

3. Manipulation of the environment

4. Facial expression

5. Voluntary control

17

Skeletal muscle is located in what 2 locations?

1. Attached to bones

2. Occasionally attached to skin

18

What are the 2 functions of cardiac muscle?

1. Propels blood into circulation through contraction.

2. Involuntary control

19

Where is cardiac muscle located?

In the walls of the heart.

20

What are the 2 functions of smooth muscle?

1. Propels substances or a baby along internal passageways.

2. Involuntary control.

21

Smooth muscle is located in which 4 locations?

1. Digestive organs

2. Urinary tract organs

3. Uterus

4. Blood vessels

22
card image

1. Name the muscle type.

2. Name the numbered feature(s).

1. Cardiac muscle

____

1. Nucleus

2. Striations

3. Intercalated disc

23
card image

1. Name the muscle type.

2. Name the numbered feature(s).

1. Skeletal muscle

2. Nucleus

24
card image

1. Name the muscle type.

2. Name the numbered feature(s).

1. Skeletal muscle

____

1. Muscle fiber

2. Nucleus

3. Striation

25
card image

1. Name the muscle type.

2. Name the numbered feature(s).

1. Smooth muscle

2. Nucleus