The human organism Flashcards
Anatomy
Organisms structure
Physiology
Organisms functions and processes
Gross/Macroscopic anatomy
Studied without a microscope
Regional anatomy
Type of gross/macroscopic anatomy
Studied area by area
Systemic anatomy
Type of gross/macroscopic anatomy
Studied system by system
Surface anatomy
Type of gross/macroscopic anatomy
Study the eternal form and its relation to deeper structures
Microscopic anatomy
Structures seen without a microscope
Cytology
Type of microscopic anatomy
Cellular anatomy
Histology
Type of microscopic anatomy
Study of tissues
Anatomical position
body erect, face forward, feet together, palms face forward
Supine
lying face upwards
Prone
lying face downwards
Superior (cephalic)
A structure above another structure (closer to the head)
Inferior (Caudal)
A structure below another structure (closer to the tail)
Medial
A structure closer to the midline of the body
Lateral
A structure further away from the midline of the body
Anterior (ventral)
Closer to the front of the body (toward the belly)
Posterior (dorsal)
Closer to the back of the body (toward the back)
Proximal (linear structures - limbs)
Closer to the point of attachment to the body
Distal (linear strucures - limbs)
Farther from the point of attachment to the body
Superficial
Closer to the surface
Deep
Farther away from the surface
Planes
Separate the body
Median plane
Through the vertical midline of the body (from face on)
Sagittal plane
Vertical through the body but to the left or right of the median
Frontal/Coronal plane
Through the vertical midline of the body (from side on)
Divides body into anterior and posterior
Transverse/horizontal plane
Through horizontal midline of the body
Divides body into superior and inferior
Oblique plane
Through the body but not at a right angle
Biopsy
Branch of histology
Removal of tissue for diagnostic purposes
Autopsy
Branch of histology
Examination of organs of a dead body to determine cause of death
Epithelial tissue
Basement membrane
Avascular
Regenerate
Functions of epithelial tissue
Protect underlying structures
Act as barrier
Secrete substances
Absorb substances
Connective tissue
Everything thats not muscle, nervous tissue or epithelial - includes blood
Abundant
Cells separated by extracellular matrix
Avascular
No blood supply
Functions of connective tissue
Tendons and ligaments Support and movement - bones Storage - fat Transport - blood Protect - cells of immune system
Blasts
Cell of connective tissue
Creates matrix
Osteoblast - makes bone
Cytes
Cell of connective tissue
Maintains matrix
Clasts
Cell of connective tissue
Break matrix down for remodelling
Adult connective tissue
Connective tissue proper
Supporting connective tissue
Fluid connective tissue
Connective tissue proper
Loose
Dense
Connective tissue proper - Loose
Areolar
Adipose
Reticular
Connective tissue proper - Dense
Regular collagenous
Regular elastic
Irregular collagenous
Irregular elsitc
Supporting connective tissue
Cartilage
Bone
Supporting connective tissue - Cartilage
Hyaline
Fibrocartilage
Elastic
AVASCULAR
Supporting connective tissue - Bone
Spongy
Compact
Fluid connective tissue
Blood
Hemopoietic
Fluid connective tissue - Blood
Red blood cells
White blood cells
Platelets
Fluid connective tissue - Hemopoietic tissue
Red marrow
Yellow marrow
Ossification
Formation of bone by osteoblasts
Lacunae
Spaces occupied by osteocyte cell body
Canaliculi
Canals occupied by osteocyte cell processes
Woven bone
Collagen fibers randomly oriented
Formed during fatal development and fracture repair
Remodelling
Removal of old bone and adding new
Even remodelled into lamellar
Lamellar bone
Mature bone in sheets called lamellae
Fibers oriented in one direction in each layer
Each direction different layer
Trabeculae
Interconnecting rods or plates of bone - like scaffolding
Osteon system
Compact bone
Central canal
Perforating canal
Compact bone
Perpendicular to long axis
Diaphysis
Long bone structure
Shaft
Compact bone
Epiphysis
Long bone structure
End of bone
Spongy bone
Epiphyseal plate
Long bone structure
Growth plate
Epiphyseal line
Long bone structure
Bone stops growing in length
Medullary cavity
Long bone structure
Red marrow in children
Change to yellow in limb bones and skull
Periosteum
Long bone structure
Two outer layers of bone
Outer - fibrous
Inner - single layer bine cells
Sharpey’s fibres
Some periosteal fibres penetrate through periosteum into bone
Strengthen attachment of tendon to bone
Endosteum
Long bone structure
More cellular than periosteum
Lines internal spaces - includes spaces in spongy bone