Zoology Lesson 3 BH Flashcards
It is the field of study that involves the microscopic examination of tissue appearance, organization, and function.
Histology
This term is used to describe a group of cells that are similar in structure and perform a specific function.
Tissue
Give the four types of tissues
epithelial tissues, connective tissues, muscular tissues, and nervous tissues.
It is the group of cells that cover the exterior surfaces of the body, line internal cavities, and passageways, and form certain glands.
Epithelial Tissues
The function of ________ tissue is to protect the body from potential infectious agents, absorb nutrients, and provide sensation.
Epithelial Tissue
It consists of only one layer of cells. These cells can be categorized based on their shape as squamous, cuboidal, or columnar.
Simple Epithelium
It can be found in the endothelium of blood vessels, alveoli, and mesothelium that covers the body cavities.
Simple Squamous Epithelium
It is characterized by box-shaped cells, and it is commonly found in the linings of the kidney where the reabsorption of minerals occurs.
Simple Cuboidal Epithelium
It is characterized by cylindrical cells with appreciable height, and its primary function is protection.
Simple Columnar Epithelium
It is composed of more than one layer of cells, and its cell shape can vary, including squamous, cuboidal, columnar, transitional, or pseudostratified.
Stratified Epithelium
It has protective functions
attributed to its multilayered
cellular composition.
Stratified Squamous Epithelium
It is composed of cuboidally shaped cells arranged in multiple layers.
Stratified Cuboidal Epithelium
It is found in the salivary
gland ducts in humans
Stratified Columnar Epithelium
Cells in this type of epithelium can
change in form, depending on the
degree of distention of the bladder.
Transitional Epithelium
It is characterized by cells with nuclei positioned at different levels, creating the impression that the membrane is composed of more than a single layer of cells.
Pseudostratified Epithelium
It consists of both actual connective tissue cells and protein fibers such as collagen and elastin. Its functions include support, protection, transport, tissue repair, and immunologic reactions.
Connective Tissues
It is predominantly made up of type I collagen and can be found in tendons and periosteum
Collagenous Connective Tissue
It is primarily formed by type II collagen and is not easily visualized under the microscope unless stained. It is often found in the bronchi, trachea, blood vessels, and hollow organs.
Elastic Connective Tissue
It is primarily formed by type III collagen and serves as the supporting framework of lymphoid organs.
Reticular connective tissue
It is the primary tissue for locomotion, characterized by its elongated structure as an adaptation for contraction.
Muscular Tissue
It is characterized by its striated appearance and is made up of very long, cylindrical, multi-nucleated cells capable of quick and forceful contractions. These contractions are typically voluntary in control.
Skeletal Muscle
It is composed of elongated branched individual cells that are configured parallel to each other. It is capable of involuntary, vigorous, and rhythmic contractions.
Cardiac Muscle
It is characterized by being non-striated, involuntary, and found in the walls of internal organs.
Smooth Muscle
Its function is to receive information from the environment or other nerve cells, and it processes this information before sending signals to other neurons or effector tissues.
Nervous Tissue
It carries information obtained from the body and the environment to the central nervous system (CNS)
Sensory Neurons
It carries impulses from the CNS to effector organs
Motor Neurons
