Week 2 (epithelial cells)

Question 1

what are the four primary tissue classes

Answer 1

• Epithelial
  
  • Muscle
  • Nervous
    -Connective

Question 2

Identify the diagram

Answer 2

Question 3

What are the two layers of epithelium

Answer 3

1. Basal lamina (in red) (made by epithelial cells)
2. Reticular lamina (yellow) (secreted by connective tissue cells)

Question 4

Classified by arrangement of cells into layers (draw and define)

Answer 4

1) Simple: One cell thick
2) Stratified: Multi cell layers thick
3) Pseudo-stratified: single layer of cells (nuclei found at different levels)

Question 5

Identify

Answer 5

Question 6

Classified by shape of surface cells

Answer 6

1) squamous = flat
2) cuboidal = cube-shaped
3) columnar = tall column
4) transitional = shape varies with tissue stretching

Question 7

Answer 7

Question 8

Answer 8

Question 9

Microvilli

Answer 9

Microvilli: Increase the surface area for re-absorption (rigid)

Question 10

Cilia

Answer 10

Cilia: Aids the movement of fluids (non-rigid)

Question 11

Simple squamous cells (location and function)

Answer 11

Location: The lungs, lining of the heart, blood vessels, lymphatic vessels
Function: semi-permeable, secretes lubricating substance

Question 12

Simple cubodial

Answer 12

Location: Ducts, secretory portions of glands in kidneys
Fucntion: absorbs, secretes muscus and enzymes

Question 13

Simple colmunar

Answer 13

Location
1) ciliated: bronchi, uterine tubes, uterus
2) Smooth: digestive tract, bladder

Function: secretes muscus; cilia moves mucus

Question 14

pseudostratified columnar

Answer 14

Location: lining of the trachea, upper respiratory tract

Function: Secretes mucus; cilia move mucus

Question 15

Stratified squamous

Answer 15

Location: lining of esophagu, mouth, vagina

Function: Protection from abrasion

Question 16

Stratified cubodial

Answer 16

Location: sweat glands, salivary glands, mammary glands
Fucntion: Protective tissue

Question 17

Stratified columnar

Answer 17

Location: Male urethra, glandualr ducts
Function: secretes, portects

Question 18

Transitional

Answer 18

Location: lining of the bladder, urethra, ureters
Function: Expansion and stretch of organs

Question 19

What are the two types of glands

Answer 19

Exocrine glands and Endocrine glands

Question 20

Exocrine glands

Answer 20

• Cells that secrete (sweat, ear wax, saliva, digestive enzymes)
  onto body surfaces or into body cavities
• Connected to the surface by tubes (ducts)

Question 21

2) Endocrine gland

Answer 21

• Secrete hormones which move into the bloodstream or lymphatic
  fluid to travel to target organs
• Often called ductless glands

Question 22

Merocrine

Answer 22

Exocrine gland: Merocrine gland secrete their product by exocytosis ( sweat glands and the salivary glands.)

Question 23

Holocrine

Answer 23

The entire secretory cell ruptures, releasing secretions and dead cell fragments (sebaceous glands of the skin and the meibomian glands of the eyelid)

Question 24

Osmosis:

Answer 24

The movement of water [SOLVENT (a fluid)] from an area of high concentration an area of high concentration to a low concentration through a semi-permeable membrane.

Question 25

Diffusion

Answer 25

The movement of [Solute: iron] from an area of high concentration to low concentration

Question 26

A red blood cell was placed into a solution that was isotonic, hypertonic or hypotonic. what is the affect on the cell and why

Answer 26

Hypertonic: High concentration in the red blood cell 2% NaCI (moves Isotonic: Similar Equilibrium 0.9% NaCI Hypotonic: Low concentration in the red blood cell 0% NaCI

Question 27

What are the different type of CAMs: Cell Adhesion Molecules

Answer 27

Tight Junctions: Desmosomes: Gap Junction:

Question 28

What are the different types of muscle

Answer 28

skeleton muscle, smooth muscle, cardiac muscle

Question 29

Two type of Connective Tissue Proper

Answer 29

1) Loose connective tissue; supports structures that it surrounds 2) Dense Connective tissue: highly fibrous (collagen)' little vascularization; reinforces and binds structures

Question 30

what are the specialised connective tisssues

Answer 30

1) Cartilage 2) Bone 3) Blood

Question 31

Answer 31

Question 32

Answer 32

skeleton muscle, smooth muscle, cardiac muscle

Question 33

Answer 33

skeleton muscle, smooth muscle, cardiac muscle

Question 34

Answer 34

skeleton muscle, smooth muscle, cardiac muscle

Question 35

Description of the fibres, voluntary?, Location?

Answer 35

Question 36

Answer 36

Question 37

Idenitfy the tissue types associated with the structure/function

Answer 37

Question 38

Answer 38