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Blood
Dr. Sannes Exam 1
31
Histology
Professional
09/15/2010

Additional Histology Flashcards

 


 

Cards

Term
Another name for red blood cells
Definition
Erythrocytes
Term
What are the Functions of Blood?
Definition

"liquid connective tissue"

circulate nutrients

remove chemical wastes

 

Term
Blood is prepared by...
Definition

blood "smear" --> "monolayer"

"Geimsa" stain

Term
What are the histological features of Erythrocytes?
Definition

-round to oval cells with bright red cytoplasm

-dense, heterochromatic nuclei (most species)

 

 

nuclei lacking in mammalian species (corpuscles)

 

Term
crenation
Definition

abnormal shape

"spiked" surface due to hypertonicity

draw water OUT of cell

Term
hemolysis
Definition

abnormal shape

cell "ghosts"

hyptonicity of enviorment

causes water uptake

Term
anisocytosis
Definition

abnormal shape

any variation from the normal

Term
poikilocytosis
Definition

abnormal shape

pathologic shape

 

Term
normochromatic
Definition
normal amount of hemoglonin
Term
hyperchromic
Definition
excess hemoglobin
Term
hypochromic
Definition
decreased amount of hemoglobin
Term
What are reticulocytes?
Definition

immature RBC

contains remnanats of ribosomal material

Term
Leukoctyes Characteristics
Definition

highly motily

specialized cells

Term
Types of Granular Leukocytes
Definition

Neutrophils

Eosinophils

Basophils

 

Term
Neutrophils
Definition

most common

SEGMENTED NUCLEUS "lobes"

HETEROCHROMATIC

 

Granules: 1)specfic granules 2) azurophilic grannules

 

Function:acute inflammation

Term

Give me examples and staining characteristics of...

 

Specfic granules

Definition

Most Numerous

stain "neutral"

 

Type: lysozyme, collagenase, and alkaline phosphatase

 

Term

Give me examples of...

 

azurophilic granules

Definition
true lysosomes, acid hyrdrolases, elastase
Term

Tell me about...

 

Eosinophils

Definition

BILOBED

HETEROCHROMATIC NUCLEI

1-3% of total leukocyte

specific granules are large, refractile, EOSINOPHILIC 

 

increased in allergic reactions and parasitic infections

Term

Tell me about...

 

Basophil

 

Definition

least common leukocyte

BILOBED, HETEROCHROMATIC NUCLEUS 

heavily stained, large "basophilic" granules

 

Increase in some parasitic diseases

Term
What are two AGRANULAR leukocytes?
Definition

Lymphocytes

Monocytes

Term
Lymphocytes
Definition

% various on species

(20-40% dog; 60-70% ruminants; 50-60% pigs)

 

3 types:

small, medium, large lymphocytes

Term

What are the histological features of...

 

small lymphocyte

Definition

6-9 um diameter

LARGE DENSE NUCLEUS "clumpy chromatin pattern

THIN RIM OF PALE BLUE CYTOPLASM

Term

What are the histological features of...

 

medium lymphocyte

Definition

12-18 um diameter

MORE CYTOPLASM than in small lymphocyte

Term

What are the histological features of...

 

large lymphocyte

Definition

only found in lymphoid tissue

"blast-like"

Term

Tell me about...

 

monocytes

Definition

largest blood vascular element 15-20 um

ABUNDANT PALE BLUE CYTOPLASM

numerous, small azurophilic granules (lysosomes)

 

PRECURSOR OF MACROPHAGES

Term
diapedesis
Definition
process by which blood-borne leukocytes move betweeen vascular endothelial cells to extravascular spaces
Term
What is a differential count
Definition

comparatice cound of blood cells

diagnostic tool fro defineing health status

Term

Platelets

(thrombocytes)

Definition

small blood-borne cell fragments

LACK NUCLEUS

 

Function: coagulation and clot retraction

Term
What makes up plasma
Definition
Serum and Lypmh
Term
serum
Definition
clear, yellowish fluid after removal of cellular elemtns and fibrin
Term
lymph
Definition

serum-like fluid

"drainafe" product of tissue space

contains absorbed fats

 

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