Histology & Tissues Characteristics

What are the arrows pointing at?

Simple Squamous Epithelial tissue

What is this? What are the arrows pointing at?

Simple Squamous mesothelium

• Nuclei & cell margins

What are the arrows pointing at? And what is A, C & D?

Simple squamous Endothelium tissue

• Lumen

• smooth muscle

• connective tissue

What cell structure is this? What’s A, B, C & D?

Stratified squamous of the lower strata (skin)

• Nuclei

• Epidermis

• Dermis

• Basement membrane

What is A, B, C, D & E?

• Stratum basale

• Stratum spinous

• Stratum granulosum

• Stratum lucid

• Stratum corneum

What tissue type is the arrow pointing at? What’s A?

Simple cubdioal epithelial tissue

• lumen

What tissue type is seen & what are the arrows pointing at?

simple cuboidal tissue

• nuclei

What is A, B & C?

• Lumen

• Simple columnar epithelium salivary gland duct

• Adipocyte

What Tissue type is this? Where is it? & What’s A &B?

Simple Columnar epithelium in small intestine

• Goblet cell

• Microvilli

What is this tissue type? where is it? What’s A, B & C?

Pseudostratified ciliated columnar epithelium in trachea

• Goblet cell

• nuclei

• cilia

What tissue type is this? where is it found?

Transitional epithelium

• found in unrinary bladder

What’s this tissue? & what is A & B?

Hyaline cartilage CT

• Chonodrocytes

• Matrix

What is this tissue? where can it be found?

Hyaline cartilage CT

• trachea

What is this tissue?

Elastic cartilage

What tissue type is this? What’s A & B?

White fibrous CT in tendon

• Nuclei

• Collagen fiber

What tissue type is this? Where can it be found?

Dense regular connective tissue. it can be found in tendons

What tissue is this? What is the arrow pointing to?

Adipose CT tissue

nucleus

What tissue type is this? What is A, B & C?

Areolar CT in the Hyodermis

• Collagen fiber

• Elastic fiber

• nuclei

What tissue type is this? What’s A, B & C?

Compact Bone

• central canal

• Osteocytes

• Osteon

What tissue type is this? what’s A, B & C?

Blood CT

• Platelets

• White blood cells

What tissue is this? what's A, B & C?

Skeletal Muscle

• Muscle Cell

• Strations

• Nuclei

What tissue is this?

Skeletal muscle

What tissue is this? What’s A, B & C?

Cross Section of Skeletal Muscle Tissue

• muscle cell

• nuclei

• endomysium

What tissue is this? What’s A & B?

Smooth muscle from the intestine

• inner circular layer

• outer longitudinal layer

What tissue is this?

Smooth muscle

What tissue is this? What’s the arrow pointing at?

Cardiac muscle

intercalated disks

What tissue is this? What is A & B?

Multipolar neuron (spinal cord smear)

• neurons

• Neuroglia

What’s this? What’s A, B & C?

Multipolar neuron.

• Nucleus

• Nucleolus

• Neurgolia

What’s A, B & C?

fascicle

perineurium

epinerium

What’s this?

Pacinian corpuscle

What’s this?

Pacinian corpuscle

What’s this?

Neuromuscular junction motor end plate.

What’s the 4 Main tissue types in the Body??

• Epithelial

• Connective Tissue

• Muscular Tissue

• Nervous Tissue.

Simple Squamous Tissue type? Characteristics? Function? & Location?

• Epithelial

• Flat thin cell, looks similar to Adipose CT however is an epithelial tissue & has a nuclei in the middle.

• Allows materials to pass through by diffusion, filtration absorption.

• Lines Blood vessels like arteries, veins & capillaries.

Simple Cuboidal Tissue type? Characteristics? Function? & Location?

• Epithelial

• Cube shape cells that form a single layer connected to basement membrane.

• Adsorption & secretion of substances.

• in Kidney Tubules & Gonads

Simple Columnar Tissue type? Characteristics? Function? & Location?

• Epithelium

• Column shaped cells that form a single layer connected to basement membrane.

• Secretion, Excretion & Absorption, can also be ciliated to make more surface area.

• small intestine

Pseudostrafified Ciliated Columnar Tissue type? Characteristics? Function? & Location?

• Epithelium

• Different sized cells packed together, similar to stratified by its one layer connected to a basement membrane.

• movement of particles & excretion.

• Respiratory tract & nasal passage.

stratified squamous non keratinized Tissue type? Characteristics? Function? & Location?

• epithelium

• layers of cells that progressively get flatter.

• protection

• covering for internal cavities & vulva.

stratified squamous keratinized Tissue type? Characteristics? Function? & Location?

• Epithelium

• layers of cells that progressively get flatter

• prevent the loss of moisture & protect body.

• Epidermis

Tranisitonal Tissue type? Characteristics? Function? & Location?

• Epithelium

• Can appeared stretched out and flatted layers or relaxed and lots of little ballon like layers.

• can be stretchy & allow for expanding.

• Bladder

Areolar Tissue type? Characteristics? Function? & Location?

• Loose CT

• Has Collagen & Elastic Fibers along with Fibroblasts cels.

• provides support & protects organs.

• Papillary region of the Dermis

Adipose Tissue type? Characteristics? Function? & Location?

• Loose CT

• Looks similar to simple squamous however the nuclei is appear on the border of the cells.

• Energy storage, insulation & cushioning.

• Hypodermis.

Dense Regular Tissue type? Characteristics? Function? & Location?

• Dense CT

• white, flexible tissue made of tightly packed bundles of collagen fibers.

• Resitant in one direction

• Tendons & Ligaments.

Dense irregular Tissue type? Characteristics? Function? & Location?

• Dense CT

• interwoven collagen fibers

• Resistant in any direction

• Found in Rectiluary region of Dermis.

Hyaline Cartilage Tissue type? Characteristics? Function? & Location?

• CT

• Glassy appearance

• helps bones move smoothly each each other.

• Articulatory ends of bones.

Elastin Cartilage Tissue type? Characteristics? Function? & Location?

• CT

• Tightly packed, with lots of elastic fibers.

• supports parts of body that need to be bendy. (goes back to original shape)

• Nose, & external ear.

Fibrocartilage Tissue type? Characteristics? Function? & Location?

• CT

• Looks like strips

• resistant to compression

• meniscus of knee, & between vertebrae

Skeletal Muscle Characteristics? Function? & Location?

• Rod and very straight looking cells with striations & multiple nuclei pre cell.

• Responsible for all volunaitry movements.

• Everywhere

Cardiac Muscle Characteristics? Function? & Location?

• Branch like structures with stations & one nuclei. Also have intercalated discs.

• pumping blood through cardiovascular system.

• Heart

Smooth Muscle Characteristics? Function? & Location?

• Spindle shaped cells with 1 middle nuceli. No strations.

• Steady contractions, in wave like manner.

• Urterus, veins & arteries.

What are Goblet cells? Functions & location?

• type of intestinal mucosal epithelial cell

• synthesize & secrete mucus.

• Airways & boundary organs.

What’s the difference between Cilia VS. Microvilli?

Can move things VS. Give more surface ares & increase absorption.

What’s glandular epithelium?

type of epithelium tissue that specializes in the release of substances in the body like mucous, digestive juices & hormones.