Human biology

Question 1

Cell + cell gives?

Answer 1

tissue

Question 2

tissue + tissue gives?

Answer 2

organ

Question 3

organ + organ gives?

Answer 3

organ system

Question 4

What is a tissue and what are their types?

Answer 4

Tissue is a group of cells
cemented(found) together to do
specific function.
1.Epithelial tissues.

2.Connective tissues.

3.Muscular tissues.

4.Nervous tissues.

Question 5

What are epithelial tissues?

Answer 5

Features

Always found covering a
surface.

Cells are rest on basement
membrane.

Substances between the cells
are few in amount.

Question 6

What are the types of epitheliel tissues?

Answer 6

simple e.t., pseudo compound cilitated e.t., compound e.t., simple squamous e.t., compound squamous e.t., columnar e.t., cuboidal e.t.

Question 7

What is a simple epithelial tissue?

Answer 7

It consist one layer of cells

Question 8

What is a compound epitheliel tissue?

Answer 8

It consist more than one layer of
cells

Question 9

What are simple squamous epithelia tissues?

Answer 9

Location: Wall of the digestive
system

Function: Protection

Question 10

What are cuboidal epithelial tissue?

Answer 10

Location: Glands, kidney

Function: Secretion

Question 11

What are columnar epithelial tissue?

Answer 11

Location: Glands of stomach, villi of
small intestine

Function: Absorption

Question 12

What are compound squamous epithelial tissue?

Answer 12

Location: Skin, esophagus

Function: Protection

Question 13

What are pseudo ciliated epithelial tissues?

Answer 13

Location: Nose, trachea

Function: Protection against dust particles
and germs.

Question 14

What is the connective tissue?

Answer 14

Features:-

.Not covering surfaces.

.Not rest on abasement membrane.

.Substances between the cells are large
in amount

Question 15

What are the types of connective tissue?

Answer 15

Proper
connective
tissue: Fats

Vascular
connective
tissue: Blood

Skeletal
connective
tissue: Bone

Question 16

What is the proper connective tissue first class?

Answer 16

1. Adipose connective tissue

Location: under skin

Function: energy storage,
insulation, shock absorber

Question 17

What is the proper connective tissue second class?

Answer 17

2. Elastic connective tissue

Location: Lungs, Blood vessels
Vocal cords

Function: Elasticity

Question 18

What are the proper connective tissue third class?

Answer 18

3. Fibrous connective tissue

Location: Tendons

Function: Connect between
muscles and bones

Question 19

What is the proper connective tissue fourth class?

Answer 19

4. Reticular connective tissue

Location: Spleen, Liver, Bone

marrow
Function: Connection

Question 20

What are the vascular connective tissues?

Answer 20

.Blood cells

.White blood cells (WBCs)

.Red blood cells (RBCs)

. Blood platelets

Question 21

What are white blood cells?

Answer 21

The biggest one of the blood
cells.

Called white because it lack of
the haemoglobin pigment.

It has a nucleus with many
shapes due to the nucleus
shape we have five types of
wbcs

Question 22

Where are wbcs produced and what is their count?

Answer 22

The bone marrow produced
the new cells

Normal count 4000-11000

Count of wbcs help us at
diagnosis of diseases

Question 23

What are cases of diagnosis of wbcs count?

Answer 23

1. If the patient with total
   higher than the maximum
   count (12000) this patient may
   have flu
2. If the patient with highest
   total(90000) this patient may
   have blood cancer (luekemia)

. If the patient with total lower
than the minimum
count(1000) this patient may
have Aids (HIV) or typhoid
fever

Question 24

What is the location and general function of wbcs?

Answer 24

Location: Blood

Function: Defense mechanism

Question 25

What are the features of rbcs?

Answer 25

1. Smaller than WBCS 2. Has disc biconcave shape 3. Enucleated cells 4. Life span 90-120 day 5. Dead cells goes to spleen and liver 6. Bone marrow produce the new cells 7. It has a haemoglobin pigment

Question 26

What is the location and general function of the rbcs?

Answer 26

Location: Blood Function: Gaseous exchange

Question 27

What are blood platelets?

Answer 27

Location: Blood Function: Clotting factors

Question 28

What are the types of skelatal tissue?

Answer 28

Bone Osteiocyte Bone cell Cartilage Chondrocyte Cartilage cell

Question 29

What is the description for bones?

Answer 29

Compact bone Location: Skeletal system Function: Allow movement, protection, support, attachment, give the body its shape, mineral storage (ca), produce blood cells

Question 30

What is the first type of cartilage?

Answer 30

Hyaline cartilage Location: Trachea Function: Keep air pathway open always

Question 31

What is the second type of cartilage?

Answer 31

Elastic cartilage Location: Nose , Ear pinnae Function: Elasticity

Question 32

What is the third type of cartilage?

Answer 32

Fibro- cartilage Location: Between tendons and bones and between bone and bone Function: Allow movement

Question 33

What links these three types of cartilage?

Answer 33

Hyaline cartilage: ground substance Fibrous cartilage: ground substance with non elastic collagen fibres. Elastic cartilage: ground substance with yellow elastic fibres

Question 34

What are types of muscular tissue?

Answer 34

Smooth muscles Skeletal muscles Cardiac muscles

Question 35

What are smooth muscles?

Answer 35

Location: Wall of the digestive system Function: Allow movement

Question 36

What are skeletal muscles?

Answer 36

Skeletal muscles Location: Skeletal system Function: Allow movement

Question 37

What are cardiac muscles?

Answer 37

Location: Wall of the heart Function: Help in blood pumping

Question 38

What is the nervous tissue?

Answer 38

Location: Nervous system Function: Take nerve impulses