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Introduction to Hemostasis Quiz 1

Total questions: 20

Worksheet time: 5mins

Name
Class
Date
1.

1. Hemostasis comes from Greek; "Hemo" means "Blood" and "Stasis" means ________.

a)

stopping

b)

motionlessness

c)

Either

d)

Neither

2.

It involves the response of the coagulation factors during vascular injury.

a)

Primary Hemostasis

b)

Secondary Hemostasis

c)

Megakaryopoiesis

d)

NOTA

3.

In megakaryopoiesis, this is the earliest recognizable stage of maturation.

a)

Promegakaryocyte

b)

Megakaryoblast

c)

Megakaryocyte

d)

Metamegakaryocyte

4.

A process of nuclear division without cytoplasmic division.

a)

Megakaryopoiesis

b)

Exocytosis

c)

Endocytosis

d)

Mitosis

5.

In megakaryopoiesis, megakaryoblast contains cytoplasmic granules.

a)

True

b)

False

6.

Metamegakaryocyte contains cytoplasmic tags or blunt protrusions of cytoplasm extending into its external environment.

a)

True

b)

False

7.

Megakaryocytes have already visible thrombocytes.

a)

True

b)

False

8.

Circulating, inactive platelets have _____ shape.

a)

Irregular

b)

Discoid

c)

Protruding

d)

Blunt

9.

Hemostasis is:

a)

A process which occurs in 2 phases: primary and secondary hemostasis

b)

A production, maturation, and proliferation of thrombocytes

c)

A mechanism involving the interaction of blood vessels, platelets and coagulation factors

d)

Only 2 options are correct

e)

AOTA

10.

Megakaryocyte maturation series: Mature to Immature

I. Metamegakaryocytes II. Megakaryoblasts

III. Promegakaryocytes IV. Megakaryocytes

a)

I,II,III,IV

b)

IV,II,III,I

c)

I,IV,III,II

d)

II,III,IV,I

11.

Cytoplasmic Tags in Promegakaryocytes.

a)

Present

b)

Absent

c)

Usually Absent

d)

Any of the Above

12.

Nuclear Feature of Megakaryoblast

a)

Single Nucleus

b)

Double Nucleus

c)

2 or more Nuclei

d)

4 or more Nuclei

13.

Cytoplasmic granules in Metamegakaryocytes.

a)

Absent

b)

Numerous

c)

Aggregated

d)

Few

14.

The stage of Megakaryopoiesis where Demarcating Membrane System (DMS) is first formed.

a)

Megakaryocytes

b)

Metamegakaryocytes

c)

Leukocytes

d)

Promegakaryocytes

15.

Substances involved in Primary Hemostasis.

I. Platelets

II. PK

III. Blood vessels

IV. Tissue Thromboplastin

a)

I and II

b)

II and III

c)

I and III

d)

II and IV

16.

Megakaryocytic Cell series or maturation is done at what site?

a)

Liver

b)

Peripheral Blood

c)

Bone Marrow

d)

NOTA

17.

What is the specimen of choice to visualize and study the different Megakaryocytic cells?

a)

Whole Blood

b)

Platelet Concentrate

c)

Bone Marrow Aspirate

d)

Any of the Three

18.

During platelet formation and release, it has been estimated that each megakaryocyte can shed how many platelets?

a)

10,000-40,000

b)

1,000-4,000

c)

400-1,000

d)

100-400

19.

What is the nuclear feature of Promegakaryocytes?

a)

Single Nucleus

b)

Double Nuclei

c)

2 or more Nuclei

d)

4 or more Nuclei

20.

Surrounding tissues in extravascular component is dependent on which of the following:


I. Bulk II.Type III. Tonicity IV. Amount

a)

I,II,III

b)

II,III,IV

c)

I,II,IV

d)

I,II,III,IV