Tissues

Question 1

What does Pathology mean?

Answer 1

: The study of structural changes caused by a disease

Question 2

Name the four types of tissues

Answer 2

Epithlia, muscle, nervous, connective

Question 3

What is the two groups of epithelium tissue?

Answer 3

1. Covering and lining epithelium

2. Gladular epithelium

Question 4

How long time does it take for the lungs to heal?

Answer 4

3-6 weeks

Question 5

Explain 8 properties of the epithelia cell

Answer 5

a. Membrane specializations, ex celia
b. Tight connections, Epithelial cells are tightly connected.
c. Polarized
d. Anchored to the extracellular matrix (ECM)
e. High mitotic activity (delar sig ofta)
f. Lack blood vessels (avascular, inga blodkärl i vävnaden)
g. Sensory information – contains nerves
h. cellularity

Question 6

What typs of classifications is covering and lining epithelia tissues devided in,?

Answer 6

Simple epithelia - Stratified (flerlagrat)

• Squamous (liggande rektangel)
• Cuboidal (kub)
• Columnar (Lång o smal)

Question 7

What typs of classifications is glandular epithelia tissues devided in,?

Answer 7

Exocrine and Endocrine

Question 8

What three typs of typs is the muscle tissues divided in?

Answer 8

1. Skeletal Musle Tissues
2. Cardiac Musle Tissues
3. Smooth Muscle Tissues

Question 9

Compere properties of the three typs of muscle tissues

Answer 9

1. Skeletal Musle Tissues
   - Straited
   - Voluntary control
   - Long, thick
   - Multiple nucleus (100 or more)
2. Cardiac Musle Tissues
   - Straited
   - Not voluntary
   - Long, thick, branched
   - One nucleus
   ex. heart
3. Smooth Muscle Tissues
   - Not straited
   - Not voluntary
   - thin, short
   - One nucleus
   ex. airways

Question 10

Terms - ‘‘Plasma membrane’’ (in a muscle cell)

Answer 10

Sarcolemma

Question 11

Terms - ‘‘Cytoplasma’’ (in a muscle cell)

Answer 11

Sarcoplasm

Question 12

Terms - ‘‘Smooth ER’’ (in a muscle cell)

Answer 12

sarco plasmic reticulum

Question 13

What is ‘‘Sarcomere’’ (in a muscle cell)

Answer 13

Functional unit of straited muscle tissue

Question 14

Terms - ‘‘Muscle fiber’’ (in a muscle cell)

Answer 14

Muscle cell

Question 15

Where do we find nerve tissues?

Answer 15

In the CNS and PNS

Question 16

What functions has the nerve tissues?

Answer 16

1. SENSORY ‐ Sensitive to stimuli
2. INTEGRATIVE ‐ Transfer stimuli into nerve signals
3. MOTOR ‐ Transfer nerve signals to other nerves, muscles or glands

Question 17

Which tissue regulates: 
- Maintain homeostasis
‐ Perception
‐ Behaviors
‐ Memories
‐ Voluntary movements

Answer 17

Nerve tissue

Question 18

The nerve tissues is devided in two groups,

Answer 18

1. Neurons

2. Glial cells

Question 19

What is Action potential?

Answer 19

Action potential (impulse) – electrical signal that 
travels along the surface of a membrane

Question 20

What is Stimulus ?

Answer 20

env. change strong enough to create

action potential

Question 21

What is Electrical excitability?

Answer 21

Electrical excitability – ability to respond to stimuli

and convert a stimuli to action potential

Question 22

Name three typs of neurons

Answer 22

‐ Multipolar
‐ Bipolar
‐ Unipolar

Question 23

Name the four steps of a nerve impulse

Answer 23

1. Stimulus
2. Depolarizing phase
3. Repolarizing phase
4. After-hyperpolarizing phase

Question 24

What has the connective tissues for functions? (7st)

Answer 24

‐ Connects, Separates
‐ Supports, strengthens
‐ Protects (immune)
‐ Insulates 
‐ Stores (energy)
‐ Transports (blood)
‐ Most are highly vascular/nerves

Question 25

Which of these properties is NOT true for Epithelial Tissues?
A.It acts as a barrier
B.It always contains blood vessels
C.Controls permeability
D.Secretes hormones or enzymes
E.Provides sensation

Answer 25

B.It always contains blood vessels

Question 26

Which of the following description is correct for ganglion?a) It is bundles of axons located in the peripheral nervous system

b) It is bundles of axons located in the central nervous system
c) It is bundles of neuronal cell bodies located in the cardiac nervous system
d) It is a cluster of neuronal cell bodies located in the central nervous system
e) It is a cluster of neuronal cell bodies located in the peripheral nervous system

Answer 26

The rightanswer is e.

Question 27

What is not a general feature of the epithelial tissue?
A. It has a nerve supply. 
B. It is vascular. 
C. It can have membrane specializations.
D. The cells are connected tightly. 
E. It has a high rate of cell devision.

Answer 27

B. It is vascular.

Question 28

Which of the following statements about the different types of cells is right?

(a) All of the stratified epithelial cells are columnar.
(b) When the muscles are stretched or contracted, the muscle cells will move on top of each other.
(c) The smooth muscle cells are long, still columnar.
(d) Both glial cells and nerve cells are part of the nervous tissue.
(e) There are no cells part of the connective-tissue, except the fibroblasts.

Answer 28

(d) Both glial cells and nerve cells are part of the nervous tissue.

Question 29

What is not true about the skeletal muscle cells 
A: We cannot control them voluntarily 
B: They are Striated 
C: They are long and thick 
D: Thave multible nuclei 
E: They are connected to bone

Answer 29

A: We cannot control them voluntarily

Question 30

Question: Which tissue stores energy reserves as fat?Answer: 
A.Connective Tissue
B.Nervous Tissue
C.Muscular Tissue
D.Epithelial TissueE.
No tissue

Answer 30

A.Connective Tissue

Question 31

All of the following cells can be found in connective tissue EXCEPT...
A) fibroblasts.
B) macrophages.
C) plasma cell.
D) mast cells.
E) glial cells

Answer 31

E) glial cells

Question 32

The percentage of whole blood occupied by red blood cells is called the... (1p)
A) hemoglobin content.
B) platelet count.
C) differential.
D) hematocrit.
E) reticulocyte count.

Answer 32

D) hematocrit.

Question 33

An individual with \_\_\_?\_\_\_ blood can theoretically donate blood to recipients of all ABO types. (1p)
A) type A
B) type B
C) type AB
D) type O
E) All of the choices are correct.

Answer 33

D) type O

Question 34

A moving blood clot transported in the blood stream is... 
A) a platelet plug.
B) a thrombus.
C) an embolus.
D) a thrombosis.
E) None of the choices is correct.

Answer 34

D) a thrombosis.

Question 35

A decline in the number of pancreatic beta cells is characteristic of... 
A) diabetes insipidus.
B) type II diabetes.
C) type I diabetes.
D) Cushing's syndrome.
E) noninsulin-dependent diabetes.

Answer 35

C) type I diabetes.

Question 36

The cells in the pancreatic islets that secrete insulin are called...
A) alpha cells.
B) beta cells.
C) delta cells.
D) F-cells.
E) chief cells.

Answer 36

B) beta cells.

Question 37

In what tissue do we find epimysium, sarcomeres and cells with multiple nuclei? (1p)

Answer 37

In skeletal muscle.

Question 38

Which of the following epithelia most easily permits diffusion? (1p)
A) simple squamous
B) transitional
C) simple columnar
D) stratified squamous
E) pseudostratified

Answer 38

A) simple squamous

Question 39

The type of protein that is most plentiful in blood plasma is called... (1p)
A) albumin.
B) fibrinogen.
C) gamma globulin.
D) alpha globulin.
E) beta globulin.

Answer 39

A) albumin

Question 40

Most oxygen in the blood is transported as... 
A) deoxyhemoglobin.
B) gas dissolved in plasma.
C) oxyhemoglobin.
D) carboxyhemoglobin.
E) carbaminohemoglobin.

Answer 40

C) oxyhemoglobin.

Question 41

11. Which of the following lymphatic tissues is the site of T-cell maturation and selection? (1p)
A) liver.
B) spleen.
C) tonsils.
D) thymus gland.
E) lymph nodes.

Answer 41

D) thymus gland.