Vocabulary Flashcards
Anabolism
Process of building large proteins from small protein pieces called amino acids
Catabolism
Process where nutrients are broken down to simpler substances and energy is released
Cell membrane
Structure surrounding cell., determines what can and cannot enter cell
Chromosome
Rod like structures in nucleus that contains genes. There is 46 in every cell (23 pairs) except for sperm and egg which contain 23 individual, separated chromosomes
Cytoplasm
All material outside nucleus but still contained within the cell wall
DNA
Chemical found within each chromosome. Arranged like a sequence of recipes, directs activity of cells
Endoplasmic reticulum
Network of canals within cytoplasm. Large proteins are made here from smaller protein pieces
Genes
Regions of DNA within each chromosome
Karyotype
Picture of chromosomes in nucleus of cell, can show mutations etc.
Metabolism
Total of the chemical process in a cell
Mitochondria
Rod shaped structures in cytoplasm that provide the principal source of energy for the cell (catabolism is the process that occurs in mitochondria)
Nucleus
Control Center of cell, contains chromosomes and directs activities of cell
Organs
Different types of tissue combine to form organs
EX. The stomach is composed of muscle tissue, nervous tissue and glandular epithelial tissue
Systems
Groups of organs working together to perform complex functions
EX. The mouth, esophagus, stomach, small intestines are organs that do the work of digestive system to digest food and absorb it into blood stream
Adipose tissue
Collection of fat cells
Cartilage
Flexible connective tissue attached to bones at joints, forms part of external ear and nose, rings of cartilage surround trachea
Epithelial cells
Skin cells that cover outside of body and line internal surfaces of organs
Larynx
Voice box, located above trachea
Pharynx
Throat, serves as common passageway for food and air
Pituitary gland
Endocrine gland at base of brain
Thyroid gland
Endocrine gland that surrounds trachea in the neck
Trachea
Windpipe, leads to bronchial tubes
Ureter
One of two tides leading from each kidney to urinary bladder
Uterus
Womb, organ that old embryo/fetus as it develops
Viscera
Internal organs in main cavities of the body
Abdominal cavity
Space below chest, contains liver, stomach, gallbladder, and intestines. AKA abdomen/ peritoneal cavity
Cranial cavity
Space in head containing brain and surrounded by skull
Diaphragm
Muscle separating abdominal and thoracic cavities, moves up and down and ands in breathing
Mediastinum
Centrally located space outside of and between lungs
Pelvic cavity
Space below abdomen, contains portions of intestines, rectum, urinary bladder, and reproductive organs
Pleura
Double folded membrane surrounding each lung
Pleural cavity
Space between the pleural layers
Spinal cavity
Space within the spinal column contains the spinal cord
Thoracic cavity
Space in chest contains heart, lungs, bronchial tubes, trachea, esophagus and other organs
Dorsal (posterior)
Pertains to the back
Ventral (anterior
Pertains to the front
Right hypochondriac region
Right upper region below the cartilage of ribs that extend over the abdomen
Left hypochondriac region
Left upper region below the rib cartilage
Epigastric region
Region above the stomach
Right lumbar region
Right middle region near the waist
Left lumbar region
Left middle region near the waist
Umbilical region
Region of the navel or umbilicus
Right inguinal region
Right lower region near the groin, which is the are where the legs join the trunk of body. AKA right iliac region because it lies near the ilium (ripper portion of hip bone)
Left inguinal region
Left lower region near the groin. AKA left iliac region
Hypogastric region
Middle lower region below umbilical region
Right upper quadrant (RUQ)
Contains liver (right lobe), gallbladder, part of the pancreas, parts of the small intestine and large intestines
Left upper quadrant (LUQ)
Contains the liver (left lobe), stomach, spleen, part of the pancreas, parts of the small and large intestines
Right lower quadrant (RLQ)
Contains parts of small and large intestines, right ovary, right fallopian tube, appendix, right ureter
Left lower quadrant (LLQ)
Contains parts of small and large intestines, left ovary, left fallopian tube, left ureter
Deep
Away from the surface. Example — the stab wound is penetrated deep into the abdomen
Superficial
On the surface. Example — superficial veins can be viewed through the skin
Proximal
Near the point of attachment. Example — the proximal end of the femur joins with the hip socket
Distal
Far from point of attachment. Example — at its distal end, the femur joins with the knee
Inferior
Below another structure. Example — the feet are at the inferior part of the body
Superior
Above another structure. Example — the head lies superior to the neck
Medial
Pertaining to the middle, near medial plane of the body. Example — when in anatomical position, the fifth finger (pinky) is medial
Lateral
Pertains to the side. Example — when in anatomical position the thumb is lateral
Supine
Lying on back. Example — the painting lies supine during an examination of the abdomen
Prone
Lying on belly. Example — the backbones are examined with patient in prone position
Cheeks
Form walls of oral cavity
Lips
Surround opening of cavity
Hard palate
Forms anterior portion of roof of mouth
Soft palate
Lies posterior to hard palate and is muscular
Rugae
Irregular ridges in mucous membrane covering anterior portion of hard palate
Uvula
Small soft tissue that hangs from soft palate, aids in production of sound and speech
Tongue
Extends across floor of oral cavity, moves food during mastication and deglutition
Papillae
Small raised areas on tongue, contain taste buds
Tonsils
Lie on both sides of oropharynx, filters that protect the body from invasion, produce lymphocytes
Gums
Fleshy tissue surrounding the sockets of teeth
Teeth
Aid in mastication, rip and tear food
Crown
Part that shows above gum line
Root
Lies within bony tooth socket
Enamel
Protects the tooth
Dentin
Main substance of tooth, lies beneath enamel and extends throughout crown
Cementum
Covers, protects, and supports dentin in root
Pulp
Lies underneath dentin, fills Center of tooth, blood vessels, nerve endings etc. are within pulp canal
Periodontal membrane
Surround cementum and holds tooth in place in tooth socket
Salivary glands
Surround and empty into oral cavity. Exocrine glands that produce saliva which lubricates mouth, contains important digestive enzymes as well as healing growth factors these gland all produce saliva and narrow ducts carry saliva into oral cavity, these gland produce about 1.5L of saliva daily
Parotid
Submandibular
Sublingual
Esophagus
9-10 inch fibromuscular tube extending from pharynx to stomach
Peristalsis
Involuntary , progressive, rhythmic contraction of muscles in wall of esophagus propelling a bolus down toward stomach
Bolus
Mass of food
Stomach
Prepares food for small intestine, food leaves stomach in 1-4 hours depending on amount and type eaten
Fundus
Upper portion of stomach
Body (of stomach)
Middle portion of stomach
Antrum
Lower portion of stomach
Sphincters
Control openings into and leading out of the stomach
Lower esophageal sphincter (LES)
Relaxes and contracts to move food from esophagus into the stomach
Pyloric sphincter
Allows food to leave stomach and enter small intestine when it’s ready
Rugae (ins stomach)
Folds in mucous membrane lining stomach, increases surface area for digestion and contain glands that secrete enzyme pepsin to begin digestion of proteins
Hydrochloric acid
Secreted to digest protein and kill bacteria remains in food
Small intestine
Extends for 20 ft from pyloric sphincter to first part of large intestine
Duodenum
First section, 1 ft long, receives food from stomach as well as bile from liver and gallbladder and pancreatic juices from pancreas
Jejunum
Second section, 8 ft long
Ileum
Third section, 11 ft long, attached to first part of large intestine
Villi
Microscopic projections that line walls of small intestine, absorb nutrients, create surface area
Large intestine
Extends from end of ileum to anus
Cecum
Pouch of right side that connects to ileum at ileocecal valve
Appendix
Hangs from cecum, no clear function
Ascending colon
Extends from cecum to undersurface of liver, where it turns into hepatic flexors to become transverse colon
Transverse colon
Passes horizontally to the left toward the spleen and then turns downward (splenic flexure) into descending colon
Descending colon
Connects to transverse colon and sigmoid colon, stores stool that will eventually empty into rectum
Sigmoid colon
Connects descending colon to rectum
Rectum
Where stool is stored, immediately follows sigmoid colon
Anus
End of large intestine, opens to outside to release stool
Liver
Located in RUQ, manufactures bile continuously, which travels through hepatic duct and meets cystic duct which leads to gallbladder
Gallbladder
Pear shaped sac under liver, store and concentrates bile for later use, after meals, gallbladder contracts forcing bile out of cystic duct into common bile duct
Pancreas
Secretes pancreatic juices (enzymes) that’s re released into pancreatic duct, which joins with common bile duct just as it enters duodenum
Absorption
Passage of materials through walls of SI into bloodstream