Last minute Histo

Question 1

What surrounds each nerve fascicle?

Answer 1

Perineurium

Question 2

What separates each Schwan cell-Axon unit?

Answer 2

Basal membrane

Question 3

Define Ganglia

Answer 3

Group of neurons in the PNC

Question 4

2 types of Ggl.

Answer 4

1) sensory

2) autonomic

Question 5

Autonomic ggl has _________ neurons

Answer 5

Multipolar

Question 6

What are satellite cells?

Answer 6

Ggl. Glial cells

Question 7

Pia is composed of

Answer 7

Delicate loose CT

Question 8

Location of Ach Estrase

Answer 8

Subneural apparatus

Question 9

Where can we find Meissner corpuscle?

Answer 9

Dermal papillary layer of hairless skin

Question 10

Pacinian corpuscle location

Answer 10

Deep dermis

Hypodermis

Question 11

6 layers of cerebral hemisphere

Answer 11

Out->In

1. Molecular
2. Outer granular
3. Outer pyramidal
4. Inner granular
5. Inner pyramidal
6. Multiform

Question 12

Job of the Juxtaglomerular cells?

Answer 12

They are part of Afferent arterioles

Produce Renin

Question 13

What are Macula Densa cells?

Answer 13

Part of the distal conveluted tubules
Na conc. Sensitive
Activate Renin-Ang system

Question 14

PCT characters?

Answer 14

Cuboidal epit
Brush border
Bulk absorption

Question 15

Leydig cells location and function

Answer 15

Interstitium

Produce Testosterone

Question 16

Prostate is developed from?

Answer 16

Urogenital sinus

Question 17

Function of the prostate?

Answer 17

Secrete highlyAlkaline fluid

30% of semen

Question 18

Basal lamina collagen type

Answer 18

IV

Question 19

What is special about fibrocartolage?

Answer 19

No perichondrium
Its btw hyaline cartilage and dense CT
Bundles of collagen fibers type I and II

Question 20

Name of the central canal in the bone

Answer 20

Haversian canal

Question 21

When do limb buds appear

Answer 21

Week 4

Question 22

Limb buds contain

Answer 22

Apical ectodermal ridge

Question 23

Islands of developing bone in intramembraneous ossification are called

Answer 23

Trabeculae

Question 24

intramembraneous ossifications stages

Answer 24

Mesenchymal cells become progenitor cells
Progenitor cells proliferate near capillaries
They secrete collagen and osteoid
Now they are called Osteoblasts

Question 25

Oseoclast are often found in

Answer 25

Lacunae of Howship

Question 26

Stages of Endochondral Ossification

Answer 26

reserve cartilage Proliferation Hypertrophy Osteogenic zone (cartilage degeneration)

Question 27

Which WBC is the largest

Answer 27

Monocyte (mono-the one and only)

Question 28

Describe Megakaryocyte

Answer 28

Huge irregular multilobular nucleus | They responsible for Platelets ofrmation

Question 29

In a muscle section Darker bands= Lighter bands=

Answer 29

Darker bands= A band | Lighter bands= I band

Question 30

Fascicle of parallel muscle is called

Answer 30

Perimysium

Question 31

Btw each individual muscle fiber there is

Answer 31

Endomysium

Question 32

Special about cardiac muscles?

Answer 32

``` Intercalated disc (Eberth’s line) Central location of nucleus ```

Question 33

Outer layer of umbilical cord?

Answer 33

Flattened squamous amniotic epithelial cells

Question 34

Intervillus space we find

Answer 34

Maternal blood

Question 35

Placental barrier is composed of

Answer 35

``` Syncytio Lamina basalis of sycytio Mesoderm of villus Lamina basalis of endothelium Capillary endothelium ```

Question 36

White pulp can be divided into

Answer 36

1. PALS 2. Splenic nodule (Malpighian nodule) 3. Marginal zone

Question 37

Glands below the circumvallate pappilae

Answer 37

Von Ebner’s

Question 38

Lines in the enamel are called

Answer 38

Lines of Retzius

Question 39

Stomach cells secrete

Answer 39

Parietal- HCl | Chief- pepsin