Histology

Question 1

Epithelium

Answer 1

• Stratified squamous-protects from wear n’ tear
(esophagus, skin, anus)

• Simple cuboidal- secrete and absorb
(kidneys, salivary glands, ducts)

• Pseudostratified columnar-secretes mucus, cilia move mucus along
(airways of respiratory system)

• Simple squamous- diffusion
(alveoli in lungs, inner lining of blood vessels & heart)

Question 2

Answer 2

• Stratified squamous-protects from wear n’ tear

(esophagus, skin, anus)

Question 3

Answer 3

• Simple cuboidal- secrete and absorb

(kidneys, salivary glands, ducts)

Question 4

Answer 4

• Pseudostratified (ciliated) columnar-secretion and absorption. Secretes mucus, cilia move mucus along
(airways of respiratory system)

Question 5

Answer 5

• Simple squamous- diffusion

(alveoli in lungs, inner lining of blood vessels & heart)

Question 6

Connective Tissue

Answer 6

*Areolar CT- attaches skin to muscle (Hypodermis)

• Reticular CT-gives structural integrity to (thymus, spleen, lymphnodes)
• Dense regular CT-parallel collagen fibers (ligaments, tendons)
• Dense irregular CT- mesh of collagen fibers (dermis)
• Hyaline cartilage-smooth collagen fibers (trachea, ribs, etc.)
• Elastic cartilage- grainy collagen & elastic fibers (epiglottis, ear)
• Bone-RBC formation, calcium, support (osteon is circular unit of bone)
• Blood- Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils

Question 7

Answer 7

Areolar CT- attaches skin to muscle (Hypodermis)

Question 8

Answer 8

• Reticular CT-gives structural integrity to (thymus, spleen, lymphnodes)

Question 9

Answer 9

• Dense regular CT-parallel collagen fibers (ligaments, tendons)

Question 10

Answer 10

• Dense irregular CT- mesh of collagen fibers (dermis)

Question 11

Answer 11

• Hyaline cartilage-smooth collagen fibers (trachea, ribs, etc.)

Question 12

Answer 12

• Elastic cartilage- grainy collagen & elastic fibers (epiglottis, ear)

Question 13

Answer 13

• Bone-RBC formation, calcium, support (osteon is circular unit of bone)

Question 14

Blood

Answer 14

• Blood-

Neutrophils (serveral nuclei)

Lymphocytes (all nucleus)

Monocytes (M)

Eosinophils (pink around nucleus)

RBC’s-Erythrocytes

Basophil-grainy dark purple

Question 15

Muscle

Answer 15

• Skeletal -movement, striated (multinucleated)
• Smooth- peristalsis, no striation (blood vessels, digestive tract)
• Cardiac- striated, single nucleated (Intercalated disk- junction between cells)

Question 16

Answer 16

• Skeletal -movement, striated (multinucleated)

Question 17

Answer 17

• Smooth- peristalsis, no striation (blood vessels, digestive tract)

Question 18

Answer 18

• Cardiac- striated, single nucleated (Intercalated disk- junction between cells)

Question 19

Answer 19

Nervous tissue- multipolar neurons and other neuroglial cells

(brain, spinal cord)

Question 20

Answer 20

Eye- choroid & retina

Question 21

Answer 21

LUNG

Alveolus (Functional unit of the lung)

Question 22

Answer 22

LUNG

Alveolus (Functional unit of the lung)

Question 23

Answer 23

Salivary gland

(simple cuboidal)

Question 24

Answer 24

Tongue-stratified squamous

Question 25

Answer 25

**Small Intestine Villi**

Question 26

Answer 26

layers of the GI tract 1. Epithelial 2. Lamina propria 3. Muscularis mucosa-smooth 4. Submucosa-loose connective tissue (Oblique in stomach) 5. Circular layer-smooth 6. Longitudinal layer-smooth 7. Adventitia

Question 27

Answer 27

* *Liver**: the functional unit of the liver is the lobule. - central vein - Sinusoids - Hepatic portal triad

Question 28

Answer 28

Question 29

Answer 29

* *Spleen**: removes foreign antigens and aging RBCs * *Red pulp**- degradation of RBC * *White pulp**-WBC immune

Question 30

Answer 30

* *Pancreas** * *Islets**- clusters of endocrine-insulin, glucogon * *Acini**-everything else-exocrine- digestive enzymes

Question 31

Answer 31

**KIDNEY** **Glomerulus** **Kidney PCT/DCT** (simple cuboidal epithelium)

Question 32

Answer 32

KIDNEY

Question 33

Answer 33

Ovary

Question 34

Answer 34

Thyroid Gland hormones: TH & calcitonin

Question 35

Answer 35

**_Testes_** **seminiferous tubule**-center of circle **interstitial cells**-in between seminiferous tubules, make testosterone Spermatocytes flagellum

Question 36

Answer 36

**Testis**

Question 37

Answer 37

**Ovary** ## Footnote **Ovary** (also functions as an endocrine gland; secretes estrogen) Follicle oocytes corona radiata antrum