Tissue Types Analysis Flashcards

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Questions and Answers

What is the difference between skeletal, smooth, and cardiac muscle?

Skeletal muscles are attached to the skeleton and are voluntary, smooth muscles are involuntary and make up the lining of most organs, and cardiac muscle is a dense tissue found only in the heart.

What are the lines in skeletal and cardiac muscle?

Striations.

What is an intercalated disc? Why are these not seen in skeletal muscles?

An intercalated disc joins cardiac muscle fibers together to continuously pump the heart; they are not seen in skeletal muscles.

What is the difference between neurons and neuroglia?

Neurons send and receive messages, while neuroglia provide support and nutrients for neurons. Signup and view all the answers

How is the shape of a neuron suited to its purpose?

Neurons are long and thin to cover large areas of the body for efficient electrical signal transmission. Signup and view all the answers

What is the difference between loose and dense connective tissue?

Loose connective tissue is found beneath epithelial tissue and supports internal organs, while dense connective tissue provides strength and is found in tendons and ligaments. Signup and view all the answers

What is the difference between areolar, adipose, and reticular tissue?

Areolar tissue provides elasticity and support; adipose tissue stores energy and insulates; reticular tissue supports organs. Signup and view all the answers

What is the difference between regular and irregular dense connective tissue?

Regular dense connective tissue has a parallel arrangement of collagen fibers, while irregular dense connective tissue can resist tension in multiple directions. Signup and view all the answers

What is the difference between hyaline, elastic, and fibrocartilage?

Hyaline cartilage is hard and found in movable joints; elastic cartilage is flexible and found in the ears and nose; fibrocartilage is strong and found in intervertebral discs. Signup and view all the answers

What is the difference between compact and spongy bone?

Compact bone has a continuous matrix with no gaps, while spongy bone has numerous branching bony plates that reduce weight. Signup and view all the answers

What is the difference between simple squamous, simple cuboidal, and simple columnar epithelial tissues?

Simple squamous cells are thin and single-layered, cuboidal cells are cube-shaped, and columnar cells are elongated. Signup and view all the answers

What is the difference between stratified squamous, stratified cuboidal, and stratified columnar epithelial tissues?

Stratified squamous has multiple layers of thin cells, cuboidal has multiple layers of cube-shaped cells, and columnar has multiple layers of column-shaped cells. Signup and view all the answers

What is the difference between transitional and pseudo-stratified epithelial tissues?

Transitional tissue has multiple layers of different cell types, while pseudostratified tissue is a single layer of varying sizes. Signup and view all the answers

What type(s) of epithelial tissue can be found in the stomach?

Simple columnar. Signup and view all the answers

What type(s) of epithelial tissue can be found in the lungs?

Simple squamous in lung sacs and stratified columnar in lungs. Signup and view all the answers

What type(s) of epithelial tissue can be found on the surface of the skin?

Stratified squamous cells. Signup and view all the answers

Study Notes

Muscle Tissue

Skeletal muscle: Voluntary muscles attached to the skeleton, allowing conscious movement.
Smooth muscle: Involuntary muscles found in the organs' linings, performing automatic functions.
Cardiac muscle: Specialized, dense tissue of the heart, rich in mitochondria, enabling strong contractions.
Striations: Visible lines in skeletal and cardiac muscles indicating organized muscle fibers.
Intercalated discs: Unique structures connecting cardiac muscle fibers, crucial for synchronized heart contractions, absent in skeletal muscles.

Nervous Tissue

Neurons: Responsible for transmitting electrical signals and communication within the nervous system.
Neuroglia: Supportive cells offering protection and nutrients to neurons, maintaining overall neuron health.

Connective Tissue

Loose connective tissue: Provides support and elasticity, located beneath epithelial tissues around organs and blood vessels.
Dense connective tissue: Offers strength in various forms, found in tendons, ligaments, and organ coverings.
Areolar tissue: Found around blood vessels and nerves; provides flexibility and immune defense.
Adipose tissue: Functions as energy storage, insulation, and protection, found beneath the skin and around organs.
Reticular tissue: Supports organs like the liver and spleen; helps maintain structural integrity.

Cartilage

Hyaline cartilage: Smooth, rounded collagen structure found in joint surfaces, providing cushioning.
Elastic cartilage: Contains flexible collagen fibers; located in the ears and nose, allowing for shape retention.
Fibrocartilage: Composed of strong bundles, providing cushioning in intervertebral discs of the spine.

Bone Tissue

Compact bone: Dense structure with a continuous matrix, providing strength and support.
Spongy bone: Lightweight with branching plates, facilitating reduced bone weight while maintaining structural integrity.

Epithelial Tissue

Simple epithelial tissues:
- Simple squamous: Thin, flat cells forming a single layer; facilitates diffusion.
- Simple cuboidal: Cube-shaped cells in a single layer, involved in secretion and absorption.
- Simple columnar: Tall, column-like cells in a single layer, aiding in absorption and secretion.
Stratified epithelial tissues:
- Stratified squamous: Multiple layers of flat cells, providing protection against abrasion; found in skin.
- Stratified cuboidal: Multiple layers of cube-shaped cells, typically found in gland ducts.
- Stratified columnar: Multiple layers of column-like cells; rare and mainly present in duct systems.
Transitional epithelial tissue: Features multiple layers of varying cell shapes, allowing stretching and flexibility, found in the bladder.
Pseudostratified epithelial tissue: Appears layered due to varying cell heights; actually a single layer; often ciliated, found in respiratory tract.

Epithelial Tissue Locations

Stomach: Simple columnar epithelial tissue for absorption and secretion.
Lungs: Simple squamous in alveoli for gas exchange; stratified columnar in larger airways.
Skin: Stratified squamous epithelial tissue, providing a protective barrier.

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Description

Explore the nuances of epithelial, connective, muscle, and nervous tissues with these flashcards. Each card presents a question that delves into the characteristics and functions of different tissue types, enhancing your understanding of human anatomy.