Histology Flashcards
Reticular Tissue
Components of Connective Tissue
Collagen Elastin Reticular (collagen)
What characterizes cartilage?
Flexible matrix Chondroblasts Lacunae
What is the function of melanin?
Dark pigmentation to protect the skin
Simple Columnar

Pseudostratified Columnar Epithelium
Non-Keratinized Stratified Squamous Epithelium Location
Tongue Esophagus Vagina

Bone

- Fibroblasts
2-3. Elastic and Collagenous Fibers
What kind of microscope do we use?
Brightfield microscope

Arrector pili

Simple Columnar Epithelium
Dense Regular Tissue Location
Tendons Ligaments Vocal cords Arteries


Fibrocartilage
Simple Columnar Epithelium Location
Inner Intestinal Lining Uterus Inner Stomach Lining Stomach Tubules

- Chondrocytes
- Collagen Fibers
Pseudostratified Columnar Epithelium Location
Nasal Cavity Trachea Bronchi

- Chondroblasts
- Chondrocytes
- Lacunae
- Ground Substance
Hyaline Cartilage Location
Ends of Bones in Moveable Joints Trachea Ends of Ribs Bronchi “Adam’s Apple” Fetal Skeleton
Pseudostratified Columnar Epithelium
White Blood Cells
Leukocytes Fight Infection

Simple Cuboidal Epithelium
What is the name of the area below the epidermis that contains Meissner corpuscles?
Dermal papillae
Where are Chondroblasts found?
Perichondrium
General Characteristics of Connective Tissue
Most Abundant More matrix than cell Most supportive and binding tissue
Red Blood Cells
Erythrocytes

Hyaline Cartilage
Sebacious glands (oil), hair follicles, and sweat glands are all located in what layer of the skin?
Dermis

Dense Regular
What is the function of transitional epithelium?
To expand and contract

- Perichondrium
- Chondroblasts
- Matrix and Elastic Fibers
- Chondrocyte in Lacunae

Neuron

Cardiac Muscle

Dense Irregular Fiber
What are the functions of muscular tissue?
- motility (movement)
- movement of substances through the body
- posture
- speech
- respiration
- heat production
What is the function of Adipose?
Store Triglycerides
Simple Cuboidal Epithelium
Adipose Tissue Location
Subcutaneous Layer of Skin Surrounding Organs Bone Marrow
What are the three layers of the skin?
- Epidermis
- Dermis
- Hypodermis/Subcutaneous

Elastic Cartilage

Areolar Fibroblasts
Keratinized Stratified Squamous Epithelium

Simple squamous epithelium

- Fibroblasts
- Reticular collagen fibers
- Leukocytes
What is the free surface in around the epithelial tissue called?
Lumen

Adipose
Compact Bone (Osseous) Location
External Bone Surfaces
What is the function of the Pacinian corpuscle?
To detect firm pressure

- Osteon
- Central Canal
- Lamella
- Lacuna
- Canaliculi
Simple Cuboidal Epithelium Location
Glands Liver Kidney Tubules

Skeletal Muscle

Pacinian corpuscle
Is non-vascular tissue slow or quick to heal?
Slow
What is the fluid in blood called?
Plasma

Pseudostratified columnar epithelium

Simple Cuboidal Epithelium
What is the ability to distinguis two point or lines very close together as separate points or lines?
Resolution

Transitional Epithelium

Stratified Squamous Epithelium
Microscopist
Person who makes microscope pictures
What attaches epithelial tissue to underlying connective tissue?
Basement membrane
Where are meissner and pacinian corpuscles found?
In the dermis
What are cardiac muscle cells called?
Cardiomyocytes
What is the name of the muscle that raises hairs upright?
Arrector pili
What is the cell body of a neuron called?
Soma

Areolar Connective Tissue
What is the function of keratin?
Water-proofing
What is a keratin cell called?
Keratinocyte
Where are mature Chondrocytes stored?
Matrix
Reticular Tissue Location
Spleen Lymph Nodes
What are the characteristics of cardiac muscle?
- branched
- striated
- single nucleus in center

Simple Cuboidal Epithelium
Keratinized Stratified Squamous Epithelium Location
Epidermis of Skin
Fibrocartilage Location
Intervertebral Discs Pubic Symphasis
Microscope

What covers the Hyaline Cartilage?
Perichondrium
Simple Squamous Epithelium Location
Lungs Kidneys Blood Vessels Body Cavities

Transitional Epithelium

Keratinized Startified Squamous Epithelium

Smooth muscle
What are the characteristics of skeletal muscle?
- long
- cylindrical
- unbranched
- striated
- multiple nuclei
- voluntary

Areolar Ground Substance
What are the 4 types of tissue?
- Epithelial tissue
- Connective tissue
- Excitable tissue
- Skin

Areolar Elastic Fiber

Elastic Cartilage
What is micrography?
Study of microscopes and their images
What is the role of Chondroblasts?
Secrete Matrix

Reticular Tissue

Bone
What are the 5 layers of the epidermis?
- Stratum corneum
- Stratum lucidum
- Stratum granulosum
- Statum spinosum
- Stratum basale
Where is Areolar Tissue found?
Everywhere (ubiquitous)
What are the 2 kinds of excitable tissue?
- Muscular tissue
- Nervous tissue

Fibrocartilage

Simple Columnar Epithelium

Simple Squamous Epithelium
What is the function of areolar tissue?
To support and defend; contains mast cells that secrete histamine and facilitate inflammation
What are the characteristics of smooth muscle?
- unstriated
- singly nucleated
- spindle shape
- unbranched
- short
- involuntary
What is the function of intercalated discs in cardiac muscle?
Bind cells together, facilitate electrical impulse transmission

- Fibroblasts
- Elastic and collagenous Fibers
Which of the 5 layers of the epidermis is miotic?
Stratum basale
What is the function of dendrites?
carry nerve impulses toward soma (shorter)

Simple Columnar Epithelium
Where is skeletal muscle found?
- Bicep, tricep, “muscle-muscles”
- attached to bones

Smooth Muscle
What is Ground Substance?
A mix of: Tissue Fluid Minerals Proteoglycans (protein + carbohydrate)

Areolar Collagenous Fiber

Adipose Cytoplasmic Membrane
What is the function of Fibrocartilage?
Shock Absorbtion

Transitional Epithelium
What are the 3 types of muscle tissue?
- skeletal
- cardiac
- smooth
Platelets
Thrombocytes Cell Fragments
Where is smooth muscle found?
viscera and vasculature
What is the name of a picture made by a microscope?
Micrograph

- Lumen
- Nucleus
Dense Irregular Tissue Location
Dermis of Skin Organ Capsules Sheathing of Bones Nerves Cartilages

Simple Cuboidal Epithelium
Blood Function
Transport Tissue
What is the function of the axon?
carry nerve impulses away from soma (single, long)

Simple Columnar Epithelium

Meissner corpuscle
How do you calculate total microscope magnification?
ocular mag (10x) X objective mag = total mag.
10x X 40x = 400x
What is the metric system pneumonic?
- King - kilo 1000
- Henry - hecto 100
- Died - deca 10
- While - whole 1
- Drinking - deci 0.1
- Chocolate - centi 0.01
- Milk - milli 0.001 (10^-3)
- Maybe - micro 10^-6
- Not - nano 10^-9
Skeletal muscle cross-section
What is the function of the Meissner corpuscle?
To detect light touch
Epithelial tissue location
Covering surfaces Lining things

Pseudostratified Columnar Epithelium

- Plasma
- Leukocytes
- Erythrocytes
- Platelets
What happens to cells as they move up through the 5 layers?
They die and are sloughed off

Elastic Cartilage
Elastic Cartilage Location
Outer Ear Epiglottis Auditory Canal
Arrector pili
Where are Keratin and Melanin found?
Epidermis
Hyaline Cartilage

Blood
Transitional Epithelium Location
Only in Urinary System Bladder Ureters Urethra
What is contained in the hypodermis?
Adipose and blood vessels

- Soma
- Nucleolus
- Axon
- Astrocytes
- Cytoplasm
- Nucleus
- Microglia
- Dendrites
What is a melanin cell called?
Melanocyte