Tissue Level Of Orginization Flashcards
several layers of cells; cuboidal to columnar shape in deep layers; squamous cells in superficial layers; keratin is absent
Nonkeratinized Stratified Squamous Epithelium
Consists of fibers (collagen, elastic and reticular) and several kinds of cells (fibroblasts, macrophages, plasma cells, adipocytes, and mast cells) embedded in a semifluid ground substance
Areolar Loose Connective Tissue
several layers of cells; cuboidal to columnar shape in deep layers; squamous cells in superficial layers; keratin is present at the most superficial surface
Keratinized Stratified Squamous Epithelium
Name the tissue
Cardiac Muscle Tissue
Name the tissue
Skeletal Muscle Tissue
Location: heart well
Function: Pumps blood to all parts of the body
Cardiac Muscle tissue
Name the tissue
Simple Squamous Epithelium
Name the tissue
Simple cuboidal epithelium
Location: Usually attatched to bones by tendons
Function: Motion, Posture, heat production
Skeletal Muscle Tissue
Consists of osteons (AKA Haversian systems) that contain lamellae, lacunae, osteocytes, canaliculi and central haversian canals
Compact/Dense Bone/Osseous Connective Tissue
Name the tissue
Hyalin Cartilage Connective Tissue
Describe the location and function of Nervous Tissue
Location: Nervous System
Function: Exhibits sensitivty to various types of stimuli, converts stimuli into nerve impluses, and conducts nerve impulses to other neurons, muscle fibers, or glands.
Name the tissue
Ciliated Pseudostratified Columnar Epithelium
Name the tissue. What are the thicker strands visible? Thinner strands?
Areolar Loose Connective Tissue. The thicker strands are collagen, while the thinner are elastin
Why does cardiac muscle tissue have intercalated discs?
Cardiac Muscle cells are not “fused” together, and intercalated discs (gap junctions) link the cells together and define their borders. Also, Intercalated discs are the major way cardiac cells communicate with each other , which is required for coordinated muscle contraction and maintenance of circulation.
Spindle-shaped, nonstriated fibers with one centally located nucleus; involuntary control
Smooth Muscle Tissue
Location: lines a few portions of upper respiratory tract
Function: moves mucus by ciliary action
Ciliated Simple Columnar Epithelium
These cells synthesize extracellular matrix, play a critical role in wound healing, and produce structural freamework for animal tissues
Fibroblasts
What is the most superficial layer of the Embryonic Germ Layers?
Ectoderm
What does Ectoderm of the Embryonic germ layer give rise to?
Nervous Tissue
Name the formed element in Blood Connective Tissue (Circled in red) and it’s function

Thrombocytes (platelets). They are essential for the clotting of blood
Consists of a bluish-white, shiny ground stubstance with fine collagen fibers; contains numerous chrondocytes; most abundant type of cartilage
Hyaline Cartilage Connective Tissue
Name the tissue
Nonciliated Simple Columnar Epithelium
Name the tissue
Nonciliated Simple Columnar Epithelium
Location: lines wet surfaces, such as lining of the mouth, espophagus, vagina, and covers the tongue Function: protection
Nonkeratinized Stratified Squamous Epithelium
What are adipocytes?
Cells that function for storage of fat
What does Mesoderm of the Embryonic germ layer give rise to?
Connective Tissues and Muscle Tissues
What are Chrondocytes?
Cartilge Cells
Name the tissue
Hyaline Cartilage Connective Tissue
Location: Lines blood vessels, air sacs of lungs, and glomerular (Bowman’s) capsules of kidneys
Function: filteration, difussion, osmosis
Simple Squamous Epithelium
Branched striated fibers with one or two centrally located nuclei; contains intercalated discs; involuntary control
Cardiac Muscle Tissue
Name the tissue
Skeletal Muscle Tissue
Location: subcutaneous layer of skin
Function: Strength, Elasticity, and Support
Areolar Loose Connective Tissue
Function: secretion and movement of mucus by ciliary action
Location: lines the airways of most upper respiratory tract
Location and function of ciliated pseudo-stratified columnar epithelium
Describe axons and dendrites and the differences between the two
Axons
- Each neuron has only 1 axon
- They are very long, and only branch out at their ends
- Usually surrounded by myelin sheath, but not always
- Have a uniform diameter
- carry nerve impulses away from the cell body
Dendrites
- Each neuron has several dendrites
- Very short, and they branch out all along, unlike axons
- non-myelinated
- Have a tapering diameter
- Carry nerve impulses towards the cell body

Name the tissue
Smooth Muscle Tissue
Consists of plasma and formed elements. The formed elements are erythrocytes, leukocytes, and thrombocytes
Blood Connective Tissue
Name the tissue
Regular Dense Connective Tissue
Name the tissue
Adipose Loose Connective Tissue
Describe the Nodes of Ranvier
Gaps between the myelin sheath. The nodes of Ranvier allow the generation of a fast electrical impulse along the axon

Name the tissue
Smooth Muscle Tissue
Location: Subcutaneous layer deep to skin; around heart and kidneys, yellow marrow of long bones
Function: reduces heat loss through skin, serves as an energy reserve
Adipose Loose Connective Tissue
What is the function of goblet cells?
They secrete mucus

Name the tissue
Cardiac Muscle Tissue
Location: covers surface of ovary, lines kidney tubules Function: secretion and absorption
Simple Cuboidal Epithelium
What is the deepest layer of Embryonic Germ Tissue?
Endoderm
Identify and describe the following:
Lamellae
Lacunae
Canaliculi
Haversian Canals
Lamellae: the ring like patterns/ circles surrounding the Haversian canal; each osteon consists of several of these concentric layers
Lacunae: Each contains one osteocyte; they are the smaller, rectangular shaped holes (many of them)
Canaliculi: Tiny passageways/canals connecting lacunae
Haversian Canals: Contain the bone’s blood vessels and nerve fibers

Name the tissue
Areolar Loose Connective Tissue
Name the tissue
Non-keratinized stratifitied squamous epithelium
Name the tissue
Nervous Tissue
Single layer of flat cells; centrally located nucleus
Simple Squamous Epithilium
Name the formed element in Blood Connective Tissue (Circled in red) and it’s function

Leukocytes (White Blood Cells.) They carry on phagocytosis and are involved in allergic reactions and immune system responses
Fibroblasts secret these type of fibers
Collagen Fibers, Elastic fibers, and reticular fibers
Name the tissue
SImple Cuboidal Epithelium
Consists of adipocytes (cells that are specialized to store triglycerides in a large central area in their cytoplasm); the nuclei are peripherally located
Adipose Loose Connective Tissue
single layer of cube-shaped cells; centrally located nucleus
Simple Cuboidal Epithelium
Location: lines a few portions of upper respiratory tract Function: moves mucus by ciliary action
Ciliated Simple Columnar Epithelium
Name the tissue
Ciliated Simple Columnar Epithelium
Long, cylindrical, striated fibers with multiple peripherally located nuclei; voluntary control
Skeletal Muscle Tissue
Name the tissue
Nonciliated Simple Columnar Epithelium
A tissue type where cells are closely packed, with little to no extracellular space
Epithilal Tissue
Name the tissue
Adipose Loose Connective Tissue
What is the middle layer of Embryonic Germ Tissue?
Mesoderm
Location: ends of long bones; anterior ends of ribs, nose, parts of larynx, trachea, bronchi, bronchial tubes
Functions: Provides smooth surface for movements of joints, as well as flexibility and support
Hyaline Cartilage Connective Tissue
Name the tissue
Ciliated Pseudostratified Columnar Epithelium
Location: Walls of hollow internal structures such as blood vessels, airways to the lungs, stomach, intestines, gallbladder, urinary bladder and uterus
Function: Motion (constriction of blood vessels and airways, propulsion of food through gastrointestinal tract, constriction of urinary bladder and gallbladder)
Smooth Muscle Tissue
Not a true stratified tissue; nuclei of cells are at different levels; all cells are attached to basement membrane, but not all reach the apical surface; cilia are present; goblet cells are present
pseudo-stratified columnar epithelium
Name the tissue
Irregular Dense Connective Tissue
Location: Forms tendons (attatch muscle to bone), most ligaments (attatch bone to bone), and aponeuroses (sheet-like tendons that attatch muscle to muscle and muscle to bone)
Function: Provides strong attatchment between various structures
Regular Dense Connective Tissue
Name the tissue
Nervous tissue
Location: forms superficial layer of skin
Function: protection
Keratinized Stratified Squamous Epithelium
Name the tissue
Nervous tissue
Name the tissue
Hyaline Cartilage Connective Tissue
Where does Epithelial Tissue originate from?
From ectoderm, mesoderm, and endoderm
Most common cell type in connective tissue
Fibroblasts
Name the tissue
Smooth Muscle Tissue
Name the tissue
Irregular Dense Connective Tissue
Name the tissue
Regular Dense Connective Tissue
Name the Embryonic Germ Layers
- Ectoderm
- Mesoderm
- Endoderm
Name the formed element in Blood Connective Tissue (Circled in red) and it’s function

Erythrocytes (Red Blood Cells.) They transport oxygen and carbon dioxide.
Name the tissue
Skeletal Muscle Tissue
Name the tissue
Keratinized Stratified squamous Epithelium
single layer of nonciliated rectangular cells; nucleus at the base of the cell; contains goblet cells and cells with microvilli in some location
Nonciliated Simple Columnar Epithelium
Location: around muscles, deeper region of dermis of skin, perichrondium of cartilage
Function: provides strength
Irregular Dense Connective Tissue
Name the locations where Blood Connective Tissue is present
Within blood vessels (arteries, arterioles, capillaries, venules, and veins) and within the chambers of the heart
Name the tissue
Regular Dense Connective Tissue
Consists predominantly of collagen fibers, randomly arranged, and a few fibroblasts
Irregular Dense Connective Tissue
What is the function of the Sarcolemma? What kind of cells is it located in?
The sarcolemma has pretty much the same function in muscle cells as the plasma membrane does in other eukaryote cells. It acts as a barrier between the extracellular and intracellular compartments, defining the individual muscle fiber from its surroundings.
Can be thought as the “Plasma membrane” of muscle cells
Name the tissue
Simple Cuboidal Epithelium
What kind of cell is shown?

Fibroblasts
Location: Makes up various parts of bones of the body
Function: Support, Protection; Houses blood-forming tissue; serves as levers that act together with muscle to enable movement
Compact/ Dense Bone/ Osseous Connective Tissue
These are the only cells to secrete keratin
Squamous Cells
Name the tissue
Cardiac Muscle Tissue
Name the tissue
Simple Cuboidal Epithelium
Describe the components of Nervous tissue
Consists of
- Cell Body (soma) which consists of
- Neurons
- processes extending from the cell body called dendrites and axons
- Axons covered with myelin sheath at some places
- Neuroglia (they do not generate or conduct nerve impulses but have other important functions
Name the tissue
Smooth Muscle Tissue
Definition of avascular
few/no blood vessels
Name the tissue
Smooth Muscle Tissue
Matrix looks white; consists of predominantly collagen fibers arranged in bundles; fibroblasts present in rows between bundles
Regular Dense Connective Tissue
single layer of ciliated rectangular cells; nucleus at the base of the cell; contains goblet cells in some locations
Ciliated Simple Columnar Epithelium
Which muscle tissues are striated?
Skeletal Muscle Tissue and Cardiac Muscle Tissue
How would you describe Skeletal Muscle Tissue?
- Branched
- Non-Branched
- Tapered
- Non-Branched
How would you describe Smooth Muscle Tissue?
- Branched
- Non-Branched
- Tapered
- Tapered
How would you describe Cardiac Muscle Tissue?
- Branched
- Non-Branched
- Tapered
- Branched
Which Muscle tissue is described as “voluntary”?
- Cardiac Muscle Tissue
- Skeletal Muscle Tissue
- Smooth Muscle Tissue
- Skeletal Muscle Tissue
Which Muscle tissue is described as “non-striated”?
- Cardiac Muscle Tissue
- Skeletal Muscle Tissue
- Smooth Muscle Tissue
- Smooth Muscle Tissue
Which Muscle tissue is described as “multi-nucleated”?
- Cardiac Muscle Tissue
- Skeletal Muscle Tissue
- Smooth Muscle Tissue
- Skeletal Muscle Tissue