AT1: Tissues

Question 1

What are tissues?

Answer 1

Large numbers of the same cell type and are typed by their size, function and shape

Question 2

Tissue types acronym

Answer 2

CEMN

Question 3

Types of tissue (CEMN)

Answer 3

Connective tissue
Epithelial tissue
Muscle tissue
Nervous tissue

Question 4

Muscle tissue structure

Answer 4

Has the ability to contract and relax

Question 5

Muscle tissue function

Answer 5

-To help control the movement of oxygen, blood, nutrients, calcium and remove wastes

-To control body movements internally as well as everyday physical activity

Question 6

Types of muscle tissue

Answer 6

-smooth
-cardiac
-skeletal

Question 7

Location of smooth muscle tissue

Answer 7

-lining walls of hollow organs and vessels

Question 8

Location of cardiac muscle tissue

Answer 8

Heart

Question 9

Location of skeletal muscle tissue

Answer 9

Attaching to bones

Question 10

Skeletal muscle tissue structure acronym

Answer 10

SVS

Question 11

Skeletal muscle tissue structure (SVS)

Answer 11

Striated and voluntary

(Voluntary- conscious; we can control)

Question 12

Functions of skeletal muscle tissue

Answer 12

-to pull on bones to produce movement
- to provide stability
-posture

Question 13

Examples of skeletal muscle tissue

Answer 13

-biceps brachii
-triceps brachii
-Rectus femoris
- biceps femoris

Question 14

What if skeletal muscle tissue did not have striation?

Answer 14

If skeletal muscle tissue was not striated, then they would not be able to contract or relax meaning no movement would occur

Question 15

Cardiac muscle tissue structure acronym

Answer 15

CIS

Question 16

Cardiac muscle tissue structure

Answer 16

Involuntary and striated

(Involuntary- don’t have to consciously think about contracting heart)

Question 17

Functions of cardiac muscle tissue

Answer 17

• to contract and relax
  -to pump blood around the body

Question 18

Example of cardiac muscle tissue

Answer 18

Heart

Question 19

What would happen if cardiac muscle tissue was not striated?

Answer 19

If not have striation, the heart would not be able to contract meaning it would not be able to pump blood-> decreasing functioning of cardiovascular system

Question 20

Smooth muscle tissue structure acronym

Answer 20

SINS

Question 21

Smooth muscle tissue structure

Answer 21

Involuntary and non striated

Question 22

Function of smooth muscle tissue

Answer 22

-to contract and relax to push food/fluids through the body

Question 23

Examples of smooth muscle tissue

Answer 23

-stomach
-intestine
-arteries
-lymphatic vessels
-anus

Question 24

Importance of striations

Answer 24

Striations in muscle cells allow for contraction and relaxation of muscle cells, which allow for movement to be generated

Question 25

Epithelial tissue structure

Answer 25

-large sheets of continuous cells

Question 26

Function of epithelial tissue acronym

Answer 26

PSA

Question 27

Functions of epithelial tissue

Answer 27

-Protection: lines internal organs and external surfaces (barrier, mucous membranes) - Secretion of substances e.g gastric juices such as bile -Absorption e.g of nutrients in the small intestine

Question 28

Why does epithelial tissue need to be thin

Answer 28

-needs to be thin so that it can secrete and absorb substances

Question 29

Location of epithelial tissue

Answer 29

-body surfaces e.g skin - lines body cavities and hollow organs e.g bladder, stomach, intestines - major component of glands

Question 30

Examples of epithelial tissue

Answer 30

-skin -transitional epithelium in bladder

Question 31

Transitional meaning

Answer 31

Able to change or move

Question 32

Nervous tissue structure

Answer 32

-dendrite, axon, cell body

Question 33

Nervous tissue function

Answer 33

- to communicate: detects stimuli and transmits signals - to provide sensory info e.g pain, temp, touch -to send motor signals to (specific organs/tissues) to control specific functions

Question 34

Location of nervous tissue

Answer 34

-found in the CNS and PNS

Question 35

Nervous tissue examples

Answer 35

-neurons -glia -brain -spinal cord -nerves

Question 36

Glial cells

Answer 36

Glial (glue)- helper cells -involved in nutrition and maintenance of nerve cells

Question 37

Which type of tissue is the most abundant

Answer 37

Connective tissue

Question 38

Connective tissue structure

Answer 38

-Most contain fibrous strands - contain fluid component-> ground substance

Question 39

Connective tissue location

Answer 39

Between different tissues and organs Within and around body organs

Question 40

Function of connective tissue (5)

Answer 40

-to provide support and structure of internal organs that help hold organs in place -to transport substances (blood and lymphatic vessels) -protective role e.g adipose tissue, bones -insulation (adipose tissue) - provide stability of movement (ligaments, tendons)

Question 41

Types/examples of connective tissue

Answer 41

-anything that is not muscle, nervous or epithelial Examples: - blood, bones, adipose tissue, fascia, ligaments, tendons and cartilage