3rd LE - Histology

Question 1

The study of cellular structure of the body

Answer 1

Histology

Question 2

Anatomy at the microscopic level

Answer 2

Microanatomy

Question 3

Organization of living things

Answer 3

Cells
Tissues
Organs
Organ Systems

Question 4

Number of cells in the human body

Answer 4

10^15

Question 5

Number of cell types in the body

Answer 5

200+

Question 6

Composed of specialized cells of the same types that perform a common function in the body

Answer 6

Tissue

Question 7

4 tissue categories

Answer 7

Epithelial
Connective
Muscular
Nervous

Question 8

Types of tissue that serves as barriers against pathogens, mechanical injury and fluid loss

Answer 8

Epithelial

Question 9

Type of tissue that carries out secretion, absorption, excretion, and filtration

Answer 9

Epithelial

Question 10

Tissue that have closely packed cells involving tight junctions

Answer 10

Epithelial

Question 11

Types of cell arrangement

Answer 11

Simple
Stratified
Pseudostratified

Question 12

Types of cell shape

Answer 12

Cuboidal
Columnar
Squamous

Question 13

An epithelium that secretes a product

Answer 13

Glandular epithelium

Question 14

Glands that secrete their product into ducts

Answer 14

Exocrine glands

Question 15

Glands that have no duct

Answer 15

Endocrine glands

Question 16

Examples of endocrine glands

Answer 16

Pituitary gland

Thyroid

Question 17

Most abundant and widely distributed tissue in complex animals

Answer 17

Connective Tissue

Question 18

Components of connective tissues

Answer 18

Specialized cells
Ground substance
Protein fibers - collagen, reticular, elastin

Question 19

3 kinds of proteins that make up fibers

Answer 19

Collagenous
Elastic
Reticular

Question 20

Proteins: Provide strength combined with flexibility; Most abundant protein in the animal kingdom; Nonelastic and do not tear easily

Answer 20

Collagenous (made up of collagen)

Question 21

Proteins: Easily stretched but also resilient

Answer 21

Elastic (made up of elastin)

Question 22

Protein: Very thin and branched

Answer 22

Reticular (made up of collagen and fibers)

Question 23

Functions of connective tissues

Answer 23

Support
Package and cushion organs
Transport of materials

Question 24

6 major types of CT

Answer 24

Loose CT
Adipose
Dense CT
Cartilage
Bone
Blood

Question 25

CT: Insulates, supports, nourishes and protects epithelial tissues

Answer 25

Loose CT

Question 26

CT: forms tendons, ligaments, and capsules for organs (in dermis of the skin, tendons, ligaments)

Answer 26

Dense CT

Question 27

CT: Fuel storage, cushioning, and insulation (beneath the skin, around the heart, and other organs)

Answer 27

Adipose

Question 28

CT: firm but flexible ground substance (found in larynx, bone surfaces at joints, nose and ear)

Answer 28

Cartilage

Question 29

CT: Functions for support, levers for skeletal muscles, blood cell production, storage of calcium and phosphorus

Answer 29

Bone

Question 30

Mature cells that live in the lacunae

Answer 30

Osteocytes

Question 31

Helps in tearing down and rebuilding of bone

Answer 31

Osteaclasts and Osteoblasts

Question 32

CT: Functions for transport of materials

Answer 32

Blood

Question 33

Composition of the blood

Answer 33

Plasma

Cells

Question 34

Fluid part of the blood containing proteins, lipids, ions, nutrients, CO2 etc.

Answer 34

Plasma

Question 35

CT: Transports oxygen and other substances (aka the red blood cells)

Answer 35

Erythrocytes

Question 36

It makes the erythrocytes color red and eventually makes the blood red

Answer 36

Hemoglobin

Question 37

A complex iron-containing structure that can be found in the hemoglobin

Answer 37

Heme

Question 38

CT: Functions for fighting infections (aka the white blood cells)

Answer 38

Leukocytes

Question 39

CT: Functions for blood clotting (aka the platelets)

Answer 39

Thrombocytes