Week 6 Lecture: The Tissue Level Of Organisation

Question 0

What are the four basic types of tissue?

Answer 0

Epithelial tissue, connective tissue, muscle tissue, neural tissue.

Question 1

What is a tissue?

Answer 1

A tissue is a group of cells that are similar in structure and perform common or related function.

Question 2

What is epithelia?

Answer 2

Layers of cells covering internal and external structures.

Question 3

What are glands?

Answer 3

Secreting cells derived from epithelia.

Question 4

What are the functions of epithelial tissue?

Answer 4

Covering, lining, protection, absorption, filtration, excretion, secretion, sensory reception, glandular epithelia.

Question 5

What are the general features of epithelial tissue?

Answer 5

Closely packed cells, intracellular connections, cell polarity, apical and basolateral surfaces, basement movement, avascular, microvilli and cilia, nervous supply, highly mitotic.

Question 6

What are the epithelial cell surface?

Answer 6

Cilia, microvilli, apical surface, Golgi apparatus, nucleus, basal iamina, mitochondria, basolateral surfaces.

Question 7

What are the intercellular connections?

Answer 7

Microvilli and cilia.

Question 8

What are the layers of epithelia tissue?

Answer 8

Simple and squamous.

Question 9

What are the examples of cell shape?

Answer 9

Squamous, cubudial, columnar

Question 10

What is glandular epithelial tissue?

Answer 10

Gland cells for specialised secretions.

Question 11

What are exocrine glands like?

Answer 11

Secreted onto epithelial surface. Unicellular or multicellular.

Question 12

What are endocrine glands?

Answer 12

Ductless secreted into the blood.

Question 13

3 basic components of connective tissue?

Answer 13

Specialised cells, extracellular protein fibres, a fluid called ground substance

Question 14

What accounts for most of the volume of connective tissues?

Answer 14

The matrix.

Question 15

Are connective tissue vascular?

Answer 15

Highly

Question 16

What does connective tissue contain?

Answer 16

Sensory receptors.

Question 17

What are the functions of connective tissue?

Answer 17

Structural frawmework, transport (fluid, dissolved material), protecting delicate organs, supporting, surrounding and interconnecting other types of tissue, storing energy reserves, defending the body from invading organisms.

Question 18

What are the classification of connective tissue?

Answer 18

Connective tissue proper, fluid connective tissue and supporting connecting tissue.

Question 19

What are the features of connective tissue proper?

Answer 19

Extracellular fibres, viscous ground substance, loose connective and dense connective tissue, varied cell types

Question 20

What are types of extracellular fibres,

Answer 20

Collagen, reticulum and elastic

Question 21

What is the role of loose connective tissue?

Answer 21

Packing materials of the body. They fill spaces between organs, cushion and stabilize specialised cells in many organs and support epithelia.

Question 22

What are examples of loose connective tissue?

Answer 22

Adipose tissue, areolar tissue, reticular tissue

Question 23

What do dense connective tissues contain?

Answer 23

Many fibres

Question 24

What are examples of dense connective tissue?

Answer 24

Dense regular connective tissue, dense irregular connective tissue, elastic tissue

Question 25

What are examples of fluid connective tissue?

Answer 25

Blood and lymph

Question 26

What are examples of the cells in blood?

Answer 26

RBC , WBC and platelets.

Question 27

What is the matrix like with cartridge?

Answer 27

Firm gel

Question 28

What does cartilage contain(

Answer 28

Chondrocytes that are only cells that occupy small chambers called lacunae, is a vascular

Question 29

What are the three types of cartilage?

Answer 29

Hyaline, elastic and fibrocartilage.

Question 30

What is bone like?

Answer 30

Volume of ground substance is very small, has hard calcified matrix and has lacunae in the matrix, contains many blood vessels

Question 31

What is muscle tissue?

Answer 31

It produces movement through contractions

Question 32

3 types of muscle tissue?

Answer 32

Skeletal muscle, cardiac muscle, smooth muscle

Question 33

What is cardiac muscle?

Answer 33

Non striated, involuntary muscle

Question 34

What is skeletal muscle?

Answer 34

Striated voluntary muscle

Question 35

What is smooth muscle?

Answer 35

Striated involuntary muscle.

Question 36

What is the role of neural tissue?

Answer 36

Conduct electrical impulses around the body

Question 37

Where is 98% of neural tissue?

Answer 37

Brain and spinal cord

Question 38

What are the longest cells in the body?

Answer 38

Neural

Question 39

What are neural tissue like,

Answer 39

Long body with dendrites and one axon