Principles Of Ani Phy Flashcards
“Things organized to use energy and raw materials from their environment, maintain integrity, and reproduce
Life
Anything in the environment that an organism reacts to
Stimuli
Characteristics of life
- Cell
- Organization
- Growth & development
- Irritability & responsiveness
- Reproduction
- Metabolism
- Nutrition
- Adaptation
- Evolution
- Senescence
Organization - hierarchy (simple to complex)
Cell - > Tissue - > Organ - > Organ system - > Organism - > Population - > Community - > Ecosystem - > Biosphere
RBC - > Blood - > Heart - > Circulatory system - > Pig - > Herd - > Farm - -
Muscle cell
Myocyte
Hardest cell to regenerate
Nerve cell
Difference between growth and development
Growth = change in size
Development = change in form (metamorphosis)
Anything that causes reaction
Stimulite
Stimuli causes taxis/tropism or philia/phobia
Crossbreed between horse and donkey
Mule (sterile)
Catabolic
Anabolic
Catabolic = breakdown
Anabolic = Building up
Natural sources of evolution
- Diversification
- Speciation
- Mutation
Genetic recombination - crossing over, happens in which phase of cell division
Meiosis I
Prophase I
Prophase I of Meiosis I
Leptotene = homologous search
Zygotene = side-by-side
Pachytene = crossing over
Diplotene = chiasmata is visible
Diakinesis
Outward expression of a trait: Genotype or Phenotype
Phenotype
Model organism example species
Mus musculus = house mouse
For a large number of physiological problems, there will be some animal on which it can be most conveniently studied.
August Krogh principle
Transgenic animals
Process by which traits that enhance a species’ survival are able to produce more surviving members than others not having those characteristics
Natural selection
Mechanistic explanation
-How does it work?
Evolutionary explanation
-How did it evolve to be the way it is?
Teleological approach
-why does it work
Disciplines of physiology
Mechanistic physiology = how
Evolutionary physiology = adaptive significance
Comparative physiology = variation
Environmental physiology = interact
Integrative physiology = synthesis of features
Basic cell functions
Self-organization
Self-regulation
Self-support and movement
Self-replication
4 primary tissue types
Muscular tissue
=contraction and force generation
Skeletal, cardiac, smooth
Nervous tissue
=initiation and transmission of electrical impulses
Epithelial tissue
=exchange of materials
Sheets and secretory glands
Connective tissue
Bone, tendon, fat, blood, cartilage
Shape of epithelial cells
Cuboidal (kidney, intestine)
Columnar
Squamous
Epithelial cells classification based on layer
Simple
Stratified
Pseudostratified
Which muscular tissue has cells that have no striations?
Smooth muscle
Which muscular tissue has cells that are involved in voluntary action
Skeletal muscle
Counterpart of hibernation for animals that sleep on summer
Estivation
State of decrease in activity or inactivity of organism
Torpor
Physiological organ system responsible for transporting gases, nutrients, and wastes
Circulatory system