Lecture 2 (Embryology, cells, and Skin) Flashcards
Anatomy Types
Anatomy: "to cut apart" Gross: body or organs with naked eye Microscopic Development: embryology Pathological: Abnormalities
Major organ systems (11)
Organs are made of tissues which are made of cells
- Integument
- skeletal
- articulations (joints)
- muscular
- circulatory
- respiratory
- digestive
- urinary
- nervous (sense organs)
- endocrine
- Reproudctive
Integument
Skin, hair, nails
Skeletal
Bones and cartilage
Circulatory
Heart, arteries, capillaries, veins
Respiratory
Nose, larynx, lungs
Digestive
Mouth, pharynx, intestines, glands of this system
Urinary
Kidney, bladder
Nervous system
Senses, taste and smell, perception, sense organs (eye, ear, smell, taste, pain, temperature, and proprioception)
Endocrine
hormones
Reproductive
Male and female
Articulation
Joints and Ligaments
3 primary germ layers
- Ectoderm
- mesoderm
- endoderm
Ectoderm
Outer most layer of skin
Cells divide very rapidly and make many functions
Brain and spinal column are also made from this (entire nervous system)
Mesoderm
Middle layer of skin
Muscles that attach to bones, the bones, the heart, blood vessels, kidney
Endoderm
Innermost layer
Respiratory system, digestive and it’s gland
Cells
Some cells have no nucleus (Blood cells)
marrow, contain many nuclei
Nuclei can have diff shapes (help with ID)
Smooth Endoplasmic reticulum
Helps with neutralizing of poisons