histology ; a&p lab practical 1

what tissue type is this? ; [sample showing bowman’s capsule]

simple squamous epithelium

what tissue type is this? ; [sample showing lung]

simple squamous epithelium

what tissue type is this?; [sample showing parathyroid gland]

simple squamous epithelium

what tissue type is this? ; [sample showing thyroid gland]

simple cuboidal epithelium

what tissue type is this? ; [sample of renal tubules in the kidney]

simple cuboidal epithelium

what tissue type is this? ; [sample of intestine]

simple columnar epithelium

what tissue type is this?

ciliated columnar epithelium

what tissue type is this? [sample showing esophagus]

stratified squamous epithelium

what tissue type is this? [sample showing sole of foot]

stratified squamous keratinizing epithelium

what tissue type is this? [sample showing salivary glands, submandibular]

stratified cuboidal epithelium

what tissue type is this? [sample showing salivary glands, sublingual]

stratified columnar epithelium

what tissue type is this? [typically found in respiratory tract]

pseudostratified ciliated columnar epithelium

what tissue type is this? [typically found in the urinary tract]

transitional epithelium

what tissue type is this? [relaxed bladder]

transitional epithelium

what tissue type is this? [stretched bladder]

transitional epithelium

what tissue type is this? [lingual gland, mixed]

human glandular epithelium

what tissue type is this? [lingual gland, mixed]

human glandular epithelium

what tissue type is this? [parotid gland, serous]

human glandular epithelium

what tissue type is this? [found beneath the skin, between muscles, and surrounding organs, blood vessels, and nerves]

areolar tissue

what tissue type is this? [found throughout the body, primarily under the skin, packed around internal organs, and within bone cavities]

adipose tissue

what tissue type is this? [sample from lymph node]

reticular tissue

what tissue type is this? [sample from tendon]

dense regular connective tissue

what tissue type is this? [sample from skin]

dense irregular connective tissue

what tissue type is this? [sample from aorta]

elastic tissue

what tissue type is this?

blood

what tissue type is this? [sample from developing bone]

hyaline cartilage

what tissue type is this?

elastic cartilage

what tissue type is this?

fibrocartilage

what tissue type is this?

bone (compact)

what tissue type is this [sample from spinal cord]

nervous tissue - motor neurons

what structure is this? [sample from scalp]

hair follicles

what type of skin is this? [sample from sole of foot]

thick skin

what are the layers of thick skin? superficial to deep

stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale

what are the layers of thin skin? superficial to deep

stratum corneum, stratum granulosum, stratum spinosum, stratum basale

what structure is this? [sample from pancreas]

pacinian corpuscle

what structure is this? [sample from finger]

nail (developing)

Simple squamous — Epithelial

Function: Diffusion, filtration, secretion in serous membranes | Location: Lung air sacs (alveoli), kidney glomerular capsule, lining of heart and blood and lymph vessels (endothelium), serous membranes (mesothelium)

Simple cuboidal — Epithelial

Function: Secretion and absorption | Location: Kidney tubules, ducts and secretory portions of small glands, ovary surface

Simple columnar (nonciliated) — Epithelial

Function: Absorption; secretion of mucus, enzymes and other substances | Location: Lining of the digestive tract from stomach to anus, gallbladder, excretory ducts of some glands

Simple columnar (ciliated) — Epithelial

Function: Cilia propel substances (e.g., oocytes, mucus) along the lining | Location: Bronchioles, uterine tubes, uterus, central canal of the spinal cord

Pseudostratified columnar — Epithelial

Function: Secretion, especially mucus; ciliated type propels mucus | Location: Ciliated: trachea and most of the upper respiratory tract. Nonciliated: sperm-carrying ducts of the male, ducts of large glands

Stratified squamous (keratinized) — Epithelial

Function: Protection against abrasion, pathogens and water loss | Location: Epidermis of the skin

Stratified squamous (nonkeratinized) — Epithelial

Function: Protection against abrasion and pathogens in moist areas | Location: Lining of the esophagus, mouth, vagina, anus

Stratified cuboidal — Epithelial

Function: Protection | Location: Largest ducts of sweat glands, mammary glands and salivary glands (rare)

Stratified columnar — Epithelial

Function: Protection and secretion | Location: Rare: male urethra, large ducts of some glands, parts of the conjunctiva

Transitional — Epithelial

Function: Stretches readily and permits distension of the urinary organs | Location: Urinary bladder, ureters, part of the urethra

Glandular epithelium — Epithelial

Function: Secretion. Exocrine glands release products through ducts; endocrine glands release hormones into the blood | Location: Exocrine: sweat, salivary and mammary glands. Endocrine: thyroid, pituitary, adrenal glands

Areolar connective tissue — Connective proper

Function: Wraps and cushions organs; holds and conveys tissue fluid; defense (macrophages, plasma cells, mast cells) | Location: Widely distributed: under epithelia, packages organs, surrounds capillaries

Adipose tissue — Connective proper

Function: Fuel reserve, insulation, supports and protects organs | Location: Under the skin (hypodermis), around kidneys and eyeballs, in the abdomen and breasts

Reticular connective tissue — Connective proper

Function: Forms a soft internal skeleton (stroma) that supports other cell types | Location: Lymph nodes, bone marrow, spleen

Dense regular connective tissue — Connective proper

Function: Attaches muscle to bone or bone to bone; withstands tension in one direction | Location: Tendons, ligaments, aponeuroses

Dense irregular connective tissue — Connective proper

Function: Withstands tension from many directions; provides structural strength | Location: Dermis of the skin, fibrous capsules of organs and joints, submucosa of the digestive tract

Elastic connective tissue — Connective proper

Function: Allows recoil after stretching | Location: Walls of large arteries, certain ligaments (e.g., ligamenta flava), around bronchial tubes

Hyaline cartilage — Cartilage

Function: Supports and reinforces; cushions; resists compression; smooth surface reduces friction | Location: Ends of long bones (articular cartilage), costal cartilages of ribs, nose, trachea and larynx, embryonic skeleton

Elastic cartilage — Cartilage

Function: Maintains the shape of a structure while allowing flexibility | Location: External ear (auricle), epiglottis

Fibrocartilage — Cartilage

Function: Tensile strength; absorbs compressive shock | Location: Intervertebral discs, pubic symphysis, menisci of the knee

Bone (osseous tissue) — Bone & blood

Function: Supports and protects; levers for muscles; stores calcium and fat; blood cell formation in marrow | Location: Bones

Blood — Bone & blood

Function: Transports respiratory gases, nutrients, wastes and hormones; defense | Location: Within blood vessels and the heart chambers