Histology Flashcards Preview

NBDE Anatomic Sciences > Histology > Flashcards

Flashcards in Histology Deck (25):
1

Brunners Glands

What are they

where are they found

Purpose

  • Submucosal glands of duodenum
  • Lubricate
  • Secrete alkaline mucous to aid in absorption and protect against acidic chyme

2

Lumpy jaw is caused by

Actinomyces israelii

Large slow growing lumps form on jaw and neck

3

2 traits of the actinomyces family

Sulfur granules

fungus like hyphae

4

Granulation tissue composition 6

  • Formed during healing of a wound
  • Endothelial cells
  • Connective tissue
  • New collagen
  • Tiny vascular components
  • Fibroblasts
  • Capillary buds

5

Epidermis

Cell type

Layers

  • Stratified Squamous epithelium
  • Corneum
  • Lucidium
  • Granulosum
  • Sspinosum
  • Basale

No capillaries present

6

What are the 3 CT layers tht surround Skeletal Muscle and what do they surround 

  • Epimysium 
    • Surrounds the entire muscle
  • Perimysium
    • Surrounds the muscle fascicles (bundles)
  • Endomysium
    • Surround individual muscle fibers

7

Tissue of GI tract

Simple Columnar (ciliated)

8

Oral Cavity

Keratinized (around teeth and HP)

Non-keratinized stratified squamous epithelium

9

Respiratory tract

Simple columnar (non-ciliated)

AKA Pseudostratified epithelium

10

Upper resp tract

Ciliated Columnar Epithelium

11

What are Graafian Follicles and their importance

  • Graafian follicles (aka ovarian follicles) is where an ovum matures in an ovary
  • The ovum will rupture from the follicle on day 14 and ovulation will begin

12

4 types if Inflammatory Exudates

  • Purulent or supporative
    • Pus forms
  • Fibrinous
    • Fibrinogen and fibrin present
  • Catarrhal
    • High mucous content
  • Malignant
    • Pleural effusion present (fluid build up btw tissues that line the lungs and chest)

13

What 5 proteins make up Fibrous CT

Collagen

Fibronectin

Elastin

Vimentin

Laminin

14

What type of collagen is found in 

Hyaline

Elastic

Fibrocartilage

Hyaline type II

Elastic type II

Fibrocartilage type I and II

15

Actin thin filaments composed of 5

G actin

Tropomyosin

trponin

alpha actin Z anchor

Nebulin- stabilizer

16

Thick myosin filaments composed of

Myosin

Titin

17

What 3 hormone regulate osteoclasts

Where are ostoclasts found in the bone

Parathyroid, GF IL6, Calcitonin

Howships lacunae

18

Type I collagen

function 

found

Resistance to tension

Skin tendons bone fibrous cartilage

MOST abundant

19

Type II collagen

function

 

Resistance to intermittent pressure 

More flexible 

20

Type III collagen

function

forms

found 3

Structural maitenance and elasticity

Forms reticular fibers

Smooth muscle, arteries, uterus

wherever retraction commonly occurs

21

Type VII collagen 

function

Forming anchoring fibrils that join epidermal basal lamina to underlying CT

22

Coagulative necrosis

 

Occurs after ischemic attack

cells that dont have high numbers of lysozymes

Commonly in heart

23

Caseous necrosis

Tuberculosis, fungal, malignancies, granulomas

24

Liquefactive necrosis

Causes supporation (pus) 

Due to large amounts of cells dying due to autolysis or hereolysis

Common with pancreas and brain infarcts

25

Intercalated discs contain which 3 adhering junctions

Fascia adhrens (actin anchoring sites)

Macula adherens (desmosomes) anchor intermediate filaments

Gap junctions- permit ion passage for action potential