How to approach histology for Human Anatomy students. Using a key will help get you through it! Add some penguin fairy dust will help too!

There are lots of histology keys out there, but the one I showed in the video is here: https://www.penguinprof.com/uploads/8/4/3/1/8431323/histology_key.jpg

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Details:

Tissue in the human body:

Epithelial: Is made of cells arranged in a continuous sheet with one or more layers, has apical & basal surfaces.

A basement membrane is the attachment between the basal surface of the cell & the underlying connective tissue.

Two types of epithelial tissues: (1) Covering & lining epithelia and (2) Glandular Epithelium.

The number of cell layers & the shape of the cells in the top layer can classify epithelium.

Simple Epithelium – one cell layer
Stratified epithelium – two or more cell layers
Pseudostratified Columnar Epithelium – When cells of an epithelial tissue are all anchored to the basement Membrane but not all cells reach the apical surface.
Glandular Epithelium — (1) Endocrine: Release hormones directly into the blood stream and (2) Exocrine – Secrete into ducts.

Connective: contains many different cell types including: fibroblasts, macrophages, mast cells, and adipocytes. Connective Tissue Matrix is made of two materials: ground substance – proteins and polysaccharides, fiber — reticular, collagen and elastic.

Classification of Connective Tissue:
Loose Connective – fibers & many cell types in gelatinous matrix, found in skin, & surrounding blood vessels, nerves, and organs.
Dense Connective – Bundles of parallel collagen fibers& fibroblasts, found in tendons& ligaments.
Cartilage – Cartilage is made of collagen & elastin fibers embedded in a matrix glycoprotein & cells called chondrocytes, which was found in small spaces.
Cartilage has three subtypes:
Hyaline cartilage — Weakest, most abundant type, Found at end of long bones, & structures like the ear and nose,
Elastic cartilage- maintains shape, branching elastic fibers distinguish it from hyaline and
Fibrous Cartilage – Strongest type, has dense collagen & little matrix, found in pelvis, skull & vertebral discs.

Muscle: is divided into 3 categories, skeletal, cardiac and smooth.
Skeletal Muscle — voluntary, striated, striations perpendicular to the muscle fibers and it is mainly found attached to bones.
Cardiac Muscle — involuntary, striated, branched and has intercalated discs
Smooth Muscle — involuntary, nonstriated, spindle shaped and is found in blood vessels & the GI tract.

Nervous: Consists of only two cell types in the central nervous system (CNS) & peripheral nervous system (PNS):
Neurons – Cells that convert stimuli into electrical impulses to the brain, and Neuroglia — supportive cells.
Neurons — are made up of cell body, axon and dendrites. There are 3 types of neurons:
Motor Neuron — carry impulses from CNS to muscles and glands,
Interneuron – interpret input from sensory neurons and end responses to motor neurons
Sensory Neuron — receive information from environment and transmit to CNS.
Neuroglia — is made up of astrocytes, oligodendrocytes, ependymal cells and microglia in the CNS, and schwann cells and satellite cells in the PNS.