Body Systems and Epithelial Tissue Flashcards
Eleven body systems
Muscular Urinary Reproductive Digestive Endocrine Respiratory Skeletal Lymphatic Integumentary Nervous Cardiovascular
Muscular components
Muscles and tendons
Skeletal, smooth and cardiac
Urinary components
Kidneys
Ureters
Bladder
Urethra
Male reproductive components
Penis Testes Ductus deferans Seminal vesicle Prostate Epididymis
Female reproductive components
Ovary Vagina Uterus Uterine tube Mammary gland
Digestive components
Salivary glands Mouth Pharynx Oesophagus Liver Stomach Gallbladder Pancreas Large intestine Small intestine Rectum Anus
Endocrine components
Hypothalamus Pineal gland Pituitary gland Thyroid gland Parathyroid gland Adrenal gland Pancreas Testes/Ovaries
Respiratory components
Pharynx Larynx Naval cavity Oral cavity Trachea Bronchus Lung
Skeletal components
Bone
Cartilage
Joint
Lymphatic/Immune components
Pharyngeal tonsil Palatine tonsil Lingual tonsil Thymus Thoracic duct Spleen Lymph node Lymphatic vessel Red bone marrow
Integumentary components
Hair
Skin + associated glands
Fingernails
Toenails
Nervous components
Brain
Spinal cord
Nerve
Cardiovascular components
Blood vessels
Vein
Heart
Artery
Histology
The study of body tissues
Four basic tissue types
Muscle
Epithelial
Nervous
Connective
Tissue
A group of similar cells that function together to carry out a specialised function
Epithelial tissue description
Line the cavities and surfaces of blood vessels and organs
Separated from other tissues by a basement membrane
Contain nerves but not blood vessels
Covering and lining epithelia
Glandular epithelia
Function of epithelial tissue
Protection Secretion Filtration Absorption Excretion
Muscle tissue description
Elongated cells called muscle fibres
Skeletal, cardiac and smooth
Function of muscle tissue
Generates physical force required to make body structures move
Connective tissue description
Composed of fibroblasts, adipocytes and the matrix
Function of connective tissue
Protection Support of body + organs Binds organs together Stores energy as fat Transport
Nervous tissue description
Consists of neurons and neuroglia
Neurons consist of dendrites and axons
Function of nervous tissue
Detects change
Generates nerve impulses
Epithelial layers
Simple
Stratified
Pseudostratified
Epithelial cell shapes
Squamous
Cuboidal
Columnar
Transitional
Squamous cells
Flat and thin
Diffusion
Cuboidal cells
About as tall as they are wide
Secretion and absorption
Columnar cells
More tall than wide
Secretion and absorption
Transitional cells
Change from flat to cuboidal
Stretching
Simple layers
Single layer of cells
Secretion, absorption and filtration
Stratified layers
Two or more layers of cells
Protection
Pseudostratified layers
Appears to have more than one layer of cells due to nuclei position but all cells are in contact with the basement membrane and do not all reach the apical surface meaning only one layer exists
Secretion
Example of simple squamous epithelium
Blood vessel lining
Example of simple cuboidal epithelium
Kidney tubules
Ducts of glands
Example of simple columnar epithelium
Gastrointestinal tract from stomach to anus (non-ciliated)
Parts of the upper respiratory tract (ciliated)
Example of stratified squamous epithelium
Oesophagus, mouth and vagina
Example of stratified cuboidal epithelium
Sweat, salivary and mammary glands
Example of stratified columnar epithelium
Male urethra
Example of pseudostratified epithelium
Trachea and most of the upper respiratory tract
Example of transitional epithelium
Bladder, urethra and ureters
Glandular epithelia description
Constitute secretory portion of glands
Consists of exocrine and endocrine glands
Exocrine glands
Secretes substances into ducts or onto a surface
Endocrine glands
Secretes substances into the blood