Anatomy: Body Tissues

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Questions and Answers

What is the primary function of a tissue in the body?

To perform specific functions (correct)
To provide structural support
To produce hormones
To regulate body temperature

Which of the following is a characteristic of epithelial tissue?

Cells are highly vascularized
Cells are highly innervated
Cells are tightly joined together (correct)
Cells are loosely connected

What is the origin of epithelial tissue?

From the three germ layers: ectoderm, mesoderm, and endoderm (correct)
From the ectoderm and mesoderm layers
From the endoderm layer only
From the mesoderm layer only

What is the main difference between simple and stratified epithelium?

Number of layers (A) Signup and view all the answers

What type of epithelium lines the blood vessels?

Simple squamous epithelium (B) Signup and view all the answers

Which type of epithelium is characterized by the presence of goblet cells?

Pseudostratified columnar epithelium (B) Signup and view all the answers

What is the function of epithelial tissue in the respiratory tract?

To line luminal cavities (D) Signup and view all the answers

What is the characteristic of epithelial tissue that allows it to regenerate?

Cells can regenerate (C) Signup and view all the answers

Match the type of epithelium with its characteristic:

Simple Squamous Epithelium = Lining the blood vessels Simple Columnar Epithelium = Lines the upper respiratory tract Pseudostratified Columnar Epithelium = Lining the nasal cavity, trachea, and bronchi Stratified Epithelium = More than one layer of cells Signup and view all the answers

Match the type of epithelium with its characteristic:

Cuboidal Epithelium = Cells are cube-shaped Squamous Keratinized Epithelium = Protects the skin from external factors Pseudostratified Columnar Epithelium = Lines the respiratory tract Neuro-epithelium = Found in the nervous system Signup and view all the answers

Match the type of epithelium with its characteristic:

Glandular Epithelium = Secretes hormones or enzymes Myo-epithelium = Has muscle-like properties Simple Squamous Epithelium = Lining the blood vessels Transitional Epithelium = Lines the urinary tract Signup and view all the answers

Match the type of epithelium with its characteristic:

Simple Epithelium = One layer of cells Stratified Epithelium = More than one layer of cells Pseudostratified Epithelium = Appears to be stratified but is not Ciliated Epithelium = Has hair-like structures Signup and view all the answers

Match the type of epithelium with its characteristic:

Columnar Epithelium = Tall and column-shaped Cuboidal Epithelium = Cube-shaped cells Squamous Epithelium = Flat cells Pseudostratified Columnar Epithelium = Lining the respiratory tract Signup and view all the answers

Match the type of epithelium with its characteristic:

Respiratory Epithelium = Lines the nasal cavity, trachea, and bronchi Simple Squamous Epithelium = Lining the blood vessels Glandular Epithelium = Secretes hormones or enzymes Myo-epithelium = Has muscle-like properties Signup and view all the answers

Match the type of epithelium with its characteristic:

Neuro-epithelium = Found in the nervous system Myo-epithelium = Has muscle-like properties Glandular Epithelium = Secretes hormones or enzymes Simple Columnar Epithelium = Lines the upper respiratory tract Signup and view all the answers

Match the type of epithelium with its characteristic:

Pseudostratified Columnar Epithelium = Lining the nasal cavity, trachea, and bronchi Simple Squamous Epithelium = Lining the blood vessels Stratified Epithelium = More than one layer of cells Ciliated Epithelium = Has hair-like structures Signup and view all the answers

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Study Notes

Tissues of the Body

A tissue is a group of cells with similar morphological characteristics, specialized to perform specific functions.
There are 4 basic tissues in the body: epithelial, connective, muscular, and nervous tissue.

Epithelial Tissue

Epithelial tissue forms continuous sheets of cells that line internal cavities and cover the external surfaces of the body.
General characteristics of epithelial tissue:
- Cells are tightly joined together.
- Cell boundaries are ill-defined.
- Cells rest on a basement membrane.
- Originate from the three germ layers: ectoderm, mesoderm, and endoderm.
- Avascular but highly innervated.
- Cells can regenerate.
- Can modify to form other types (glandular epithelium, neuro-epithelium, and myo-epithelium).

Classification of Epithelial Tissue

Surface Epithelium: covers surfaces of the body or lines luminal cavities within the body.
Types of epithelial tissue:
- Simple epithelium: one layer of cells.
- Stratified epithelium: more than one layer of cells.
- Squamous epithelium: flat, plate-like cells.
- Squamous keratinized epithelium: found in skin.
- Transitional epithelium: found in urinary tract.
- Glandular epithelium: forms glands.
- Neuro-epithelium: forms sensory receptors.
- Myo-epithelium: found in exocrine glands.
- Columnar epithelium: tall, column-like cells.
- Cuboidal epithelium: cube-like cells.
- Pseudo-stratified columnar epithelium: appears multi-layered but is not.
- Ciliated epithelium: has hair-like structures.
- Pseudo-stratified columnar epithelium with goblet cells: found in respiratory tract.
- Respiratory epithelium: lines the upper respiratory tract (nasal cavity, trachea, and bronchi).
- Simple squamous epithelium: lines blood vessels.
- Simple columnar epithelium: lines the digestive tract.
- Simple cuboidal epithelium: lines the kidneys and adrenal glands.
- Pseudostratified columnar epithelium: lines the respiratory tract.

Tissues of the Body

A tissue is a group of cells with similar morphological characteristics, specialized to perform specific functions.
There are 4 basic tissues in the body: epithelial, connective, muscular, and nervous tissue.

Epithelial Tissue

Epithelial tissue forms continuous sheets of cells that line internal cavities and cover the external surfaces of the body.
General characteristics of epithelial tissue:
- Cells are tightly joined together.
- Cell boundaries are ill-defined.
- Cells rest on a basement membrane.
- Originate from the three germ layers: ectoderm, mesoderm, and endoderm.
- Avascular but highly innervated.
- Cells can regenerate.
- Can modify to form other types (glandular epithelium, neuro-epithelium, and myo-epithelium).

Classification of Epithelial Tissue

Surface Epithelium: covers surfaces of the body or lines luminal cavities within the body.
Types of epithelial tissue:
- Simple epithelium: one layer of cells.
- Stratified epithelium: more than one layer of cells.
- Squamous epithelium: flat, plate-like cells.
- Squamous keratinized epithelium: found in skin.
- Transitional epithelium: found in urinary tract.
- Glandular epithelium: forms glands.
- Neuro-epithelium: forms sensory receptors.
- Myo-epithelium: found in exocrine glands.
- Columnar epithelium: tall, column-like cells.
- Cuboidal epithelium: cube-like cells.
- Pseudo-stratified columnar epithelium: appears multi-layered but is not.
- Ciliated epithelium: has hair-like structures.
- Pseudo-stratified columnar epithelium with goblet cells: found in respiratory tract.
- Respiratory epithelium: lines the upper respiratory tract (nasal cavity, trachea, and bronchi).
- Simple squamous epithelium: lines blood vessels.
- Simple columnar epithelium: lines the digestive tract.
- Simple cuboidal epithelium: lines the kidneys and adrenal glands.
- Pseudostratified columnar epithelium: lines the respiratory tract.