Physiology Flashcards
(46 cards)
cerebrum,diencephalon,cerebellum and brain steam
Parts of brain
largest part of the brain , sensations here, decisions here, language, sensory, limbic system, involves cerebral cortex(gray and white matter), sulci (grooves) deeper grooves fissures, Includes r/l hemispheres
Cerebrum
split into left and right separated by longitudinal fissures connected by the corpus callosum Left Hemisphere: in language,receptive and expressive, math skills, reasoning and analytical Right Hemispheres:sounds, melodies, art, emotional express
Hemispheres
regulates motor output,cognition and speech production Brocca’s area is here,
Frontal Lobe
receives info about proprioception sense where your body is reading,
Parietal Lobe
house auditory and olfactory areas and wernicke area, critical in language comprehension
Temporal Lobe
vision input
Occipital Lobe
located in the center of the brain, includes the Thalamus and Hypothalamus thalamus:sensory hypothalamus: regulates the ANS and endocrine system by the pituitary, controls behavior and circadian rhythms, controls hunger, thirst sleep etc
Diencephalon
cauliflower shaped structure located posterior and inferior to the cerebrum, second largest part of the brain and is concerned with muscle tone, coordinates complex movements, regulates movement and posture
Cerebellum
includes the spinal cord, includes the mid-brain,pons and medulla oblongatta Midbrain- conducts nerve impulses to the pons and sensory impulses from the spinal cord to the thalamus control movements to eyes,head and neck PONS: bridges cerebellum and cerebrum with spinal cord Medulla Oblongata: inferior portion of the brainstem, conducts sensory and motor impulses, contains, respiratory, cardiovascular and vasomotor
Brainsteam
molecules strung together resembling a twisted double strand of beads, round protein that form backbone of the thin myofilaments
Actin
long proteins with globular heads; responsible for binding with the actin molecules and pulling the thin myofilaments closer together made from thick myofilaments
Myosin
positioned within each myofibril are small contractile units , contains myofilaments, mainly actin and myosin, includes defining ends zlines, H zone(center), A band (Length of myosin), I band (Thin myofilament)
Sacromere
dark pigament of the skin and hair produced by the melanocyte usually in the stratum basale, protection of UV rays
Melanin
Protein produced by keratinocytes, gives skin protection, keeps skin impenetreatable, made of hair and nails
Keratin
regulates sleep-wake cycles of the body
Melatonin
group of skeletal muscles innervated by a single spinal segment
Myotome
a layer of tissue that covers the surfaces of bones; provides a connective layer around the bone to which tendons can attach
Periosteum
Type A: Presence of Antigen A; against B Type B: Antigen B; against A Type AB: presence of antigens A and B; no antibodies Type O: Absence of both antigens; presence of antibodies against both antigens Universal Recipient: Type AB; can receive this blood type and all others Universal Donor: Type O
Blood Types
Avascular, tough, protective connective tissue found chiefly in thorax,joints and some rigid tubes
Cartilage
promotes bone development, helps absorb and metabolize calcium and aids the immune system found in milk,fish,liver oils an sun exposure
Vitamin D
functions to transport blood and respiratory gases, Protection and combat hemorrhage Includes the blood,heart,blood vessels,
Cardiovascular System
responsible for transporting nutrients to and wast products from cells, includes RBCs(erthrocytes), WBC’s (Leukocytes) and platelets (thrombocytes) 5L total
Blood
known as red blood cells, makes up more than 90% of blood volume is to transport oxygen to cells does not have a nucleus lives about 120 days, bioconcave, hemoglobin helps with
Erthrocytes
