m3: organisms’ body organization

Question 1

It is a group of similar cells performing a common function.

Answer 1

Tissue

Question 2

It is a branch of Biology that deals with the study of plant and animal tissues.

Answer 2

Histology

Question 3

It s an instrument used to cut tissues into ultra-thin sections

Answer 3

Microtome

Question 4

4 Types of Tissues (ECMN)

Answer 4

❖ Epithelial
❖ Connective
❖ Muscular
❖ Nervous

Question 5

Classification of Epithelial Tissues (number of layers & shape)

Answer 5

❖ According to number of layers
❖ According to shape

Question 6

❖ According to number of layers
- S
- S
❖ According to shape
- Sq
- C
- C

Answer 6

❖ According to number of layers
- Simple
- Stratified
❖ According to shape
- Squamous
- Cuboidal
- Columnar

Question 7

ACCORDING TO NUMBER OF LAYERS
❖ Simple –
❖ Stratified –

Answer 7

❖ Simple – 1 layer
❖ Stratified – 2 or more layers

Question 8

ACCORDING TO SHAPE
❖ Squamous –
❖ Cuboidal –
❖ Columnar –

Answer 8

❖ Squamous – flattened
❖ Cuboidal – cube-like
❖ Columnar – elongated

Question 9

Categories of Epithelial Tissues
1. C&LE
2. GE

Answer 9

1. Covering and Lining Epithelia
2. Glandular Epithelia

Question 10

Facing exterior and interior spaces
a. _- surface
b. _ _- basement membrane (basal lamina)

Answer 10

1. Covering and Lining Epithelia
   a. Apical
   b. Basal surface

Question 11

Form glands

Answer 11

2. Glandular Epithelia

Question 12

❖ Single layer of flattened cells
❖ These cells are usually found in thin barriers where exchange of nutrients, wastes, and respiratory gases occurs.
❖ Example: alveoli of the lungs
and blood vessels (capillaries)

Answer 12

Simple Squamous Epithelium

Question 13

❖ Basal-cuboidal to columnar

Types:
a. - with nuclei; mouth, pharynx, esophagus, vagina, anal canal
b.

Answer 13

Stratified Squamous

a. Non-Keratinized
b. Keratinized

Question 14

❖ Single layer of cube-like cells
❖ These cells have large cytoplasm, which makes them more efficient in absorption
and secretion.
❖Example: tubules of the kidneys

Answer 14

Simple Cuboidal Epithelium

Question 15

Ducts of larger glands

Answer 15

Stratified Cuboidal

Question 16

❖ Single layer of columnar cells
❖ These cells are found on the linings of small intestines and is responsible for absorption

Answer 16

Simple Columnar Epithelium

Question 17

❖ _– these are extensions of the cell membrane to increase the surface area for absorption
❖ _– these cells are responsible for the secretion of mucus

Answer 17

Microvilli
Goblet cells

Question 18

❖ ‘_ _’ epithelium
❖ These are made up of columnar cells of irregular shape
❖ The cells appear to be forming several layers, but are actually arranged in a single layer
❖ Example: upper respiratory tract

Answer 18

Pseudostratified Columnar Epithelium

Falsely stratified

Question 19

Transitional Epithelium

Cuboidal-
Squamous-
Urinary bladder

Answer 19

Cuboidal- relaxed
Squamous- stretched
Urinary bladder

Question 20

❖ Binding and support
❖ Protection
❖ Maintenance of body form
❖ Filling body space
❖ Storage of fats
❖ Transport of nutrients and wastes
❖ Body defense
❖ Repair of body parts

Answer 20

Connective Tissues

Question 21

Connective Tissue Proper
TYPES:
LDREA

Answer 21

❖Loose Connective Tissue
❖Dense Connective Tissue
❖Reticular Connective Tissue
❖Elastic Connective Tissue
❖Adipose Tissue

Question 22

Connective Tissues 2 types

Answer 22

❖ Supportive Connective Tissue
Cartilage
Bones

❖ Fluid/Vascular Connective Tissue
Blood