101 Final Flashcards
Action potential
Transient polarization event that includes polarity reversal of sarcolemma (nerve cell membrane)
The start of an electrical current
Carbon, hydrogen, oxygen, nitrogen
Elements the human body makes up 96%
Anterior chamber of eye
Between cornea and iris
Blind spot of eye
Region where the retina connects to optic nerve whee there are no rods or cones to receive images–optic disk
Connective tissue
Blood is the tissue
Cartilage tissue
Tough elastic material found between bones of spine and ends of long bones
Shock absorber and allows for flexibility
Found in nose, ear, larynx
Causes of conduction deafness
Ear infection Allergies Hole in eardrum Earwax Swimmers ear
Characteristics of irregular bone
Complicated shapes for protection
Vertebrae protects spine
Hip bones protect internal organs
Characteristics of neuron
Body (soma), axon, dendrites
Long lived, amniotic, high metabolic rate
Use highest amount of energy in the body
Characteristics of plasma membrane PPLC
Fine layers of phospholipids
Protein, lipids, carbohydrates
Characteristics of reticular fibers
Branched collagenous fibers that form delicate networks
Characteristics of spongy bone
Honeycomb of trabeculae filled with yellow bone marrow
Yellow marrow is made of adipose tissue and is in long bones
Characteristics of trabecular bone
Filled with yellow marrow
Same as spongy bone
Glycogen
CHO stores in liver in this form
Circumvallate papillae
Any of usual 8-12 large papillae near back of the tongue
Provide a final safe guard against something harmful or unhealthy
Conjunctivitis
Pink eye
Contagious inflammation of conjunctiva and is usually caused by bacteria or virus
Redness, swelling, pain, pus
Sarcomere
Contractile unit of skeletal muscles
Cornea
Circular and transparent in front of cornea
Allows light rays into the eye
First place where light is bent and refracted
Astrocytes
Most abundant glial cell
Cling to neurons and their synaptic endings
Cover capillaries
Support neurons, anchor them
Control chemical environment
Bursae
Flattened shapes
Sacs lines with synovial membranes and containing synovial fluid
Ependymal cells
Thin membrane of glial cells lining the ventricles of brain and central canal of spinal cord
Fontanelle
Soft spot, allow cranium to expand
Foramina
Round opening in bone
Passageway for blood vessels, nerves, and other things
Ganglia
Parasympathetic cell bodies
Surround cell bodies
Ligaments
Connective tissue band
Help hold long bones together at a joint
Menisci
Crescent shaped fibrocartilage acting as a cushion
All synovial joints
Part of knee
Mitosis
Split cell and make another
Cell division
Division of nucleus
Monosaccharides
Simple sugar
Carbohydrate that cannot be decomposed by hydrolysis
Two main types are aldosesand and ketoses
What does it mean to be simple cuboidal
Cube-shaped single layer
Simple squamous
Single layer, flat irregular
Simple columnar
One layer, column shaped
Where do you find simple cuboidal tissue/cells
Digestive system and duct system
Where do you find simple squamous
Lines capillaries, serous membranes, blood vessels
What is the function of collagen
Tensile strength
What’s the function of elastic tissue
Stretch
What is the function of reticular tissue
Gives support
What is the function of muscular tissue
Movement
What makes up/components of connective tissue
Fibers, cells, ground substance
How do you know that tissue is damaged
Inflammation
Three types of skeletal cartilage
Hyaline (most abundant), fibrocartilage, elastic cartilage
What is the structural unit of a compact bone
Haversian system or osteon
If you had to pick a bone tissue to withstand tension, what bone tissue would you pick?
Compact
Rheumatoid arthritis (what’s different from other arthritis)
Caused by genetics, autoimmune disease (body cannot protect itself)
Osteoarthritis
General wear and tear of a joint
Gouty arthritis
Uric acid build up
Where do cranial bones develop from
Within fibrous connective tissue membranes
Differentiate between epiphyseal line and epiphyseal plate
The line forms after the plate closes
Which hormone influences bone development
Growth hormone
Thyroid hormone controls what
BMI
What parts do you find in the synovial joints
Articular cartilage, articular capsules, synovial membrane, synovial fluid
Where is the bursa found
Between joints, acts as a cushion
Where do you find the tendon sheath
Around the tendon, outside the joint, reduce friction
What is the function in the joint of synovial fluid
Lubricates the joint
What is the function of articular cartilage
Prevents friction
Wheee is articular cartilage found
End of bones
What are the functions of the skeletal system
Protect, support, mineral storage, blood cell production,
Where are osteocytes found
Lacunae
What are osteocytes
Mature bone cells
What are osteoblasts
Make up bone matrix
Osteoclasts
Tears down bone matrix
What are chondrocytes
Produce cartilage
What is the bursa
Sac-like structure
What is a meniscus
Fibrocartilage disk
What is a ligament
Made out of fibrous tissue, connects bone to bone or bone to muscle
Main component is collagen
What are tendons
Connects muscle to muscle, muscle to bone
Function is to provide strength and tension to the joint
Strong fibrous connective tissue
What is a flagellum
Propels like a flipper, whip like motion
Tiniest cell in human body
Sperm
Flagellum is found
Only on the sperm
What do you find in the thoracic cavity
Heart, lungs, pleura membrane, great vessels, diaphragm
What do find in cranial cavity
Brain
What do you find in the dorsal cavity
Brain and spinal cord
What is found in the ventral cavity
Thoracic, abdominal, pelvic
What is negative feedback
Tries to return to homeostasis, different from positive because it stops and shuts down
What is positive feedback
Fills it up, responds and returns, gets bigger and bigger
Contractions, blood clot
How to define survival needs
Goal of life is to survive
What does it mean by imbalance in homeostasis
Sick
Human body from simplest to complex
organelles, cells, tissue, organ, organ system, organisms
Strongest bonds in human body
Covalent
What are the weakest bonds
Hydrogen
What does it mean to synthesize
Production or making of something
What is the longest chain of simple sugar
Polysaccharides
What is the most common element
Carbon, oxygen, hydrogen, nitrogen (make up 96%)
What is the most abundant substance in the body
Water
What is another name for table sugar
Sucrose
Sucrose
Disaccharide
What is an ionic compound
One is positive, one is negative, form electrolytes, held together by an electrical current
What is the pH scale
Measures acidity, pH of 9 you are basic, pH of 3 you are acidic
What is an ion
Positive or negatively charged substances
What is the most common positive ion outside the cell
Sodium
Solution
Mixture dissolved
Suspension
Heavier substance sinks
What is a colloidal solution
Like opaque, think you can see through it
Example is plasma
What is an example of a suspension in the body
Blood
What is cytosol
Fluid found in cells
What kind of solution is cytosol
Colloidal
What is diffusion
Movement across the membrane, goes from natural gradient from high to low
No energy (capillaries)
What is osmosis
Diffusion of water (kidney)
What is active transport
Energy needed, have to have a carrier
What is phagocytosis
The cell engulfs particles that are bad (white blood cells)
Three types of cell junctions
Tight junctions (keep everything in and out)
Desmosomes (anchor)
Communication junction (gap junctions)
Meiosis
Division of DNA matter to half
Mitosis
Copies everything to get two identical daughter cells
Make up of the plasma membranes
Two layers, proteins and lipids, little carbohydrates
Sign is phospholipids
What is a fixator
Stabilizer while one part of the body moves
Synergistic
Worlds together with another muscle
Antogonist
Works against muscles
Agonist muscle
Works to produce a specific movement
Perimysium
Connective tissue surrounding a fascicle
What is endomysium
Covers each muscle fiber
Membrane of each muscle fiber
Sarcolemma
What is a myofibril
Made up of myofilaments (actin and myosin)
What is the functional unit of a skeletal muscle
Sarcomere
What are the thin filaments in a muscle
Actin
What are the thick filaments
Myosin
What is the most common waste product found in the skeletal muscles
Lactic acid
What happens if you stretch a muscle where thick and thin are not overlapping
Lose all tension, none generated
Role of acetylcholine
Destroy
Rule of nines
Measurement of how burnt a patient is
Divisions of ANS
Sympathetic and parasympathetic
Function of primary somatosensory cortex
Exhibits spacial discrimination
Function of somatosensory association cortex
Integrates sensory information, forms comprehensive understanding of a stimulus
Determines size, texture
Function of prefrontal cortex
Intellect, cognition, recall, personality
Location of gustatory
Somatosensory association cortex
Function of thalamus
Relay center, motor activities, memory, learning
Function of hypothalamus
Regulates blood pressure, heart rate
Pyruvic acid is converted to
Ethanol