Exam 1 - Ch. 1, 2, 4, 5 Flashcards
Anatomy
The study of structure and form
Physiology
The study of functions
1st level of organization
Chemical level
2nd level of organization
Cellular level
3rd level of organization
Tissue level
4 major types of tissue
epithelial, connective, muscular, nervous
4th level of organization
Organ level
5th level of organization
Organ system level
6th level of organization
Organismal Level
Standing upright, feel parallel and flat on floor, upper limbs at sides, palms forward, head level and eyes forward
Anatomical position
Toward the front
Anterior/Ventral
Toward the back
Posterior/Dorsal
Above
Superior
Below
Inferior
Toward midline/middle of body
Medial
Away from midline/middle of body
Lateral
Closer to the point of attachment
Proximal
Farther from the point of attachment
Distal
Closer to the body surface/skin
Superficial
Away from the body surface
Deep
Vertical division between left and right
Sagittal Plane
Vertical division between anterior and posterior
Coronal / Frontal Plane
Horizontal division between superior and inferior
Transverse Plane
Head, Neck, Trunk
Axial Region
Upper and Lower Limbs
Appendicular Region
Cavity: Ribs, Lungs, Heart
Thoracic
Cavity: Stomach, Digestive organs
Abdominal
Cavity: Reproductive Organs, Bladder
Pelvic
Cavity: Brain
Cranial
Cavity: Spine
Vertebral Canal
Serous Membrane: around the heart
Pericardium
Serous Membrane: around the lungs
Pleura
Serous Membrane: around abdominal organs
Peritoneum
The ability to maintain a consistent, stable internal environment
Homeostasis
Change in a variable in one direction causes effects that change the variable in the OPPOSITE DIRECTION
Negative Feedback
Change in a variable in one direction causes effects that change the variable in the SAME DIRECTION
Positive Feedback
Ability to dissolve many substances
Solubility
Attraction of water molecules to a substance other than water
Adhesion
Attraction between water molecules
Cohesion
Substances that dissolve in water
Hydrophilic
Substances that do not dissolve in water; Nonpolar Molecules
Hydrophobic
Substances that partially dissolve in water; Phospholipids
Amphipathic
Substances that dissolve in water but remain intact
Polar Molecules
Substances that dissolve in water and dissociate
Salts, Acids, Bases
Bio. Macromolecule:
Store Energy, Structural component of cell membranes
Lipids
Bio. Macromolecule:
Supply and Store Energy
Carbohydrates
Bio. Macromolecule:
Store and transfer genetic material
Nucleic Acids
Membrane Protein:
Communicate to other cells that they belong to the body
Identity Marker
Membrane Protein:
Catalyze chemical reactions
Enzyme
Membrane Protein:
Regulate the movement of substances across the membrane
Transport Protein
Membrane Protein:
Secure the cytoskeleton to the plasma membrane
Anchoring Site
Membrane Protein:
Bind cells to one another
Cell Adhesion Proteins
Membrane Protein:
Bind ligands
Receptor
Processes by which substances are obtained and eliminated across the plasma membrane
Membrane Transport
Membrane transport that DOES NOT require cellular energy
Passive
Membrane transport that DOES require cellular energy
Active
The net movement of a substance from where it is more concentrated to where it is less concentrated
Diffusion
Molecules pass between phospholipid molecules
Simple Diffusion
Transport is assisted by a carrier protein or channel protein
Facilitated Diffusion
Passive movement (diffusion) of water across a selectively permeable membrane
Osmosis
A cell swells and then bursts
Lysis
A cell shrivels and shrinks
Crenation
Vesicular Transport:
Substance is secreted from cell
Exocytosis
Vesicular Transport:
Substance is taken up into cell
Endocytosis
A group of similar cells that perform a common function
Tissue
Tissue:
Densely packed cells, little to no ECM
Epithelial Tissue
Physical protection, selective permeability, secretions, sensations
Epithelial Tissue Functions
ET Classification:
1 cell layer
Simple
ET Classification:
2+ cell layers
Stratified
ET Classification:
1 cell layer, looks like more
Pseudostratified
ET Classification:
flat, wide, irregular cell
Squamous
ET Classification:
cell as tall as it is wide
Cuboidal
ET Classification:
cell taller than it is wide
Columnar
ET Classification:
cell that changes shape
Transitional