Chp 2- Pertaining to Body as Whole Flashcards
What are cells?
fundamental unit of all living things
Major parts of a cell?
- chromosome
- nucleus
- cell membrane
- cytoplasm
- mitochondria
- ER
Cell Membrane
protects + regulates what passes
Nucleus
where cell division occurs
Chromosomes
- rod-like structures in Nucleus (23 Pairs)
- 46 total
- contain genes → DNA →activity of cell based on sequence
Cytoplasm
- all material outside nucleus
- supplies chemical needs of All
Endoplasmic Reticulum
manufacture proteins for the cell
Ribosomes
- build long chains of proteins
- anabolism → build large proteins
Mitochondria
Energy, nutrients, O2
Anabolism
build large protein from small protein
Catabolism
complex proteins down to simple protein with Energy release
Karyotype
numerical order of chromosomes
metabolism
anabolism + catabolism
Muscle Cell
- long slender, fibers → contact+ relax
- voluntary (concious) → arms, legs
- involuntary (unconcious) → heart, lungs
Nerve cells
send nerve impulses
Fat Cells
- large empty space for fat storage
- connective tissue → bone, blood, adipose
Epithelial Cells
- all over body
- Exocrine + endocrine glands → responsible for secretions
- skin/lining
- square + flat
Tissues
group of similar cells working together
Organs
different types of tissue combine to form an organ
Systems
groups of organs working together to perform complex functions
Adipose Tissue
fat cells
Cartilage
connective tissue
Epithelial Cells
Skin Cells, outside world
Histologist
Specialist
larynx
voice box
pharynx
throat, passage way, food + air
pituitary gland
endocrine gland @ base of brain
Thyroid Gland
@ top of trachea
Trachea
wind pipe
Ureter
to blader
urethra
bladder to outside
Uterus
womb
Viscera
internal organs
Cranial Cavity
Brain + Pituitary
Thoracic
lungs, heart, esophagus, trachea, aorta, bronchi, thymus gland
Pleural Cavity
- Part of thoracic cavity
- space around the lungs
mediastinum
- Part of thoracic cavity
- between left and right pleural cavities (between lungs, holds heart)
Abdominal Cavity
stomach, SI, LI, spleen, pancreas, liver, gall bladder
Pelvic Cavity
portions of small and large intestines, bladder, rectum, urethra, ureters, uterus + vagina in females
Spinal Cavity
Nerves of the spinal cord
Right/Left hypochondriac region
top, below ribs
Epigastric Region
Above stomach
R/L Lumbar region
Middle sides
Umbilical Region
Middle
R/L inguinal Region
bottom corners