Chapter 2: Body Organization Flashcards
cytology
the study of cells and their function
What function do cells perform for the body?
reproduction
hormone secretion
energy production
excretion
What are the functions for special cells?
muscle contraction
electrical impulse transmission
What makes up a cell?
nucleus
cytoplasm
cell membrane
histology
the study of tissue
How are tissues formed?
When like cells are grouped together to perform an activity
What are the 4 types of tissue?
Muscle
Epithelial
Connective
Nervous
Muscle tissues
composed of muscle fibers and produces movement in the body by contracting
What are the 3 types of basic muscles?
skeletal
smooth
cardiac
Skeletal muscle
attached to the bones
Smooth muscle
internal organs like intestine and uterus
cardiac muscle
only in the heart
Epithelial Tissue
Found as a lining for internal organs and covering for the skin
What and where are the different functions for epithelial tissue?
Form a protective barrier - skin
absorb - lining of intestine
secrete - sweat glands
excrete wastes - kidney tubules
What is the purpose of connective tissue?
to support and protect
name the 4 forms of connective tissue
adipose
bone
cartilage
tendons
Nervous tissue
composed of neurons that allows for conduction of electrical impulses between brain and rest of the body
What does the nervous tissue form?
brain
spinal cord
nerves
What 3 types of tissue does the stomach contain?
muscle fibers
nerve tissue
epithelial tissue
What is the purpose of an integumentary system?
A 2 way barrier and regulates temperature
What organs are in the integumentary system?
skin Hair Nails Sweat glands Sebaceous glands
What is the purpose of a musculoskeletal system?
To support and protect body. Form blood cells and stores minerals. And produces movement
What organs are in the musculoskeletal system?
Bones
Joints
Muscles
What is the purpose of the cardiovascular system?
pumps blood to transport nutrients, oxygen, and wastes
What organs are in the cardiovascular system?
Heart
Arteries
Veins
What is the function of the blood (hematic) system
transports oxygen, protects, and controls bleeding
What organs are in the blood system?
plasma
erythrocytes
leukocytes
platelets
What is the purpose of the lymphatic system?
Protects body
What organs are in the lymphatic system?
Lymph nodes Lymphatic vessels Spleen Thymus gland tonsils
What is the purpose of the respiratory system?
obtains oxygen and removes carbon dioxide
What organs are in the respiratory system?
Nasal cavity Pharynx Larynx Trachea Bronchial tubes Lungs
What is the purpose of the gastrointestinal system?
To ingest, digest, and absorb nutrients
What organs are in the gastrointestinal system?
oral cavity pharynx esophagus stomach small intestine colon liver and gallbladder pancreas
What is the function of the urinary system?
filters waste and removes from body
What organs are in the urinary system?
kidneys
ureters
urinary bladder
urethra
What is the purpose of the female reproductive system?
Provides eggs and provides place for baby
What organs are in the female reproductive system?
ovaries fallopian tubes uterus vagina vulva breast
What is the male reproductive system
produces sperm
What organs are in the male reproductive system?
testes epididymis vas deferens penis seminal vesicles prostate glands bulbourethral glands
What is the purpose of the endocrine system?
Regulates metabolic activity
What organs are in the endocrine system?
Pituitary glands pineal gland thyroid gland parathyroid glands thymus gland pancreas adrenal glands ovaries and testes
What is the purpose of the nervous system?
Receives sensory information and coordinates response
What organs are in the nervous system?
Brain
Spinal Cord
Nerves
cardiovascular
pertaining to the heart and blood vessels
muscular
pertaining to the muscles
lymphatic
pertaining to lymph
hematic
pertaining to blood
gastroenterology
study of stomach and small intestine
gynecology
study of the female body
ophthalmology
study of the eye
dermatology
study of the skin
Sagittal Plane
Divides body into left and right
frontal Plane
Divides the body into front and back
Transverse Plane
Divides body into upper and lower portions
Cephalic
Head
Cervical
Neck
Brachial
arm
crural
leg
What are the regions of the anterior trunk?
Thoracic
Abdominal
Pelvic
Pubic
What are the regions of the posterior trunk?
dorsum
vertebral
gluteal
What are 2 dorsal cavities?
Cranial
Spinal
What are ventral cavities?
Thoracic
Abdominopelvic
What does the cranial cavity contain?
Brain
What does the spinal cavity contain?
spinal cord
What does the thoracic cavity contain?
2 lungs
mediastinum
What does the mediastinum contain?
Heart Aorta Esophagus Trachea Thymus gland
What does the abdominopelvic cavity contain?
digestive organs
excretory organs
reproductive organs
What is the abdominopelvic and thoracic cavity divided by?
diaphragm
What are the 2 layers in the viscera encases in sac?
Parietal layer
visceral layer
What is the viscera called in the thoracic cavity?
pleura
What is the viscera called in the abdominopelvic cavity?
peritoneum
What are the subdivisions of the pleura?
Pleural cavity
pericardial cavity
Pleural cavity
surrounds the lungs
pericardial cavity
surrounds the heart
What are int he upper row regions of the abdomen?
Hypochondriac
Epigastric
What are in the middle row regions of the abdomen?
Lumbar
Umbilical
What are in the lower row regions of the abdomen?
Inguinal
Hypogastric
What is in the RUQ?
Majority of liver gallbladder small portion of pancreas small intestine colon
What is in the RLQ?
Small intestine colon right ovary right fallopian tube appendix right ureter
What is in the LUQ?
Small portion of liver spleen stomach majority of pancreas small intestine colon
What is in the LLQ?
small intestine colon left ovary left fallopian tube left ureter
Superior
More toward head
Inferior
More towards feet
Anterior
More towards front
Posterior
More towards back
Medial
More towards middle
lateral
more towards side
proximal
nearer to the point of attachment to body
distal
farther away from point of attachment to body
apex
tip or summit of organ
base
bottom or lower part of an organ
superficial
more towards surface of body
deep
further away from surface of body
Supine
lying face up
Prone
lying face down
What are the 5 levels of the body?
Cells Tissues Organs Systems Body