Cell Theory and Tissue Types

These flashcards cover key concepts related to Cell Theory and various types of tissues, helping to prepare for the exam.

What is the basic unit of life according to cell theory?

A cell is the basic unit of life.

How many cells are there approximately in a human body?

There are about 50-70 trillion cells in a human body.

What are the four types of tissues?

The four types of tissues are Epithelial tissue, Connective tissue, Muscular tissue, and Nervous tissue.

What is Simple Cuboidal epithelium?

One layer of cube-like cells found in lining of the kidney tubules and glands.

What type of epithelium is found in capillary lining and air sacs in the lungs?

Simple squamous epithelial tissue.

What characterizes stratified squamous epithelium?

It has multiple layers of squamous cells and is found on the top layer of skin.

Where is Pseudostratified Columnar-Ciliated epithelium found?

It is found in the trachea and fallopian tubes.

What types of connective tissue are categorized as Dense CT?

Tendon and ligament.

What is the function of fibroblasts?

Fibroblasts are cells that produce connective tissue fibers.

What is the function of muscular tissue?

Muscular tissue is responsible for movement.

What are the three types of muscle tissues?

Smooth muscle, Skeletal muscle, and Cardiac muscle.

What is the composition of Nervous tissue?

Nervous tissue is made up of neurons, which are cells in the brain and spinal cord.

What is the epidermis composed of?

The epidermis is composed of stratified squamous epithelial cells, including layers of dead keratinized cells and live cells.

What layers compose the skin?

The skin is composed of the epidermis, dermis, and hypodermis (or subcutaneous layer).

What tissue is found in the hypodermis or subcutaneous layer?

Adipose tissue (fat cells) is found in the hypodermis.