muscles Flashcards
muscles
- skeletal
- smooth
- cardiac
skeletal muscle cells
- striated
- many muclei
- voluntary contraction
- usually attatched to bones by tendons
smooth muscle cells
- non-straited
- one nucleus
- involuntary contractions
- in the walls of internall organs
- responds to the sympathetic/parasympathetic nervous system
cardiac muscle cells
- striated
- one nucleus
- involuntary contractions
- in the walls of the heart
- stimulated by sympathetic/parasympathetic nervous system
parasympathetic
- relaxation
- rest and digest
ex. produces tears
sympathetic
- fight or flight
muscle structure
muscle –> muscle fibre bundle –> muscle fibre –> myofibrils –> myofilaments
sacroplasm
- “cytoplasm of the muscle fibre”
- filled with Ca+ ions required for muscle contraction
myofibrils
FILAMENTS
- 5nm
- thin
- actin proteins like twisted
beads
MYOSIN PROTEINS
- 11nm
- bind to the filament with a
double head
bone –>tendon–>nerve–>muscle fibre–>sacroplasmic reticulum–>myofibril–>myofilaments
skeletal muscle arrangement
bone –>tendon–>nerve–>muscle fibre–>sacroplasmic reticulum–>myofibril–>myofilaments
renal artery
carry oxygenated blood from your heart to your kidneys
renal vein
carries deoxygenated blood from the kidney to the inferior vena cava
aorta
transports blood to the kidneys
inferior vena cava
collects deoxygenated blood.
kidney
remove waste products from the blood and produce urine
- filtration, reabsorption, secretion
ureter
carry urine from the kidneys to the bladder
urethra
allows urine to pass outside the body
urea
a less toxic waster from protein breakdown
anatomy of the excretory system
aorta –> renal artery –> kidney –> renal vein –> vena cava
cortex
outside of the kidney
- tougher
medulla
middle of the kidney
- salty
renal pelvis
“reservoir” where all the veins and arteries are
nephron
connected to the collecting duct and goes to the renal pelvis
- skeletal
- smooth
- cardiac
muscles
- striated
- many muclei
- voluntary contraction
- usually attatched to bones by tendons
skeletal muscle cells
- non-straited
- one nucleus
- involuntary contractions
- in the walls of internall organs
- responds to the sympathetic/parasympathetic nervous system
smooth muscle cells
- striated
- one nucleus
- involuntary contractions
- in the walls of the heart
- stimulated by sympathetic/parasympathetic nervous system
cardiac muscle cells
- relaxation
- rest and digest
ex. produces tears
parasympathetic
- fight or flight
sympathetic
muscle –> muscle fibre bundle –> muscle fibre –> myofibrils –> myofilaments
muscle structure
- “cytoplasm of the muscle fibre”
- filled with Ca+ ions required for muscle contraction
sacroplasm
THICK FILAMENTS
- 5nm
- actin proteins like twisted
beads
MYOSIN PROTEINS
- 11nm
- bind to the filament with a
double head
bone –>tendon–>nerve–>muscle fibre–>sacroplasmic reticulum–>myofibril–>myofilaments
myofibrils
bone –>tendon–>nerve–>muscle fibre–>sacroplasmic reticulum–>myofibril–>myofilaments
skeletal muscle arrangement
carry oxygenated blood from your heart to your kidneys
renal artery
carries deoxygenated blood from the kidney to the inferior vena cava
renal vein
transports blood to the kidneys
aorta
collects deoxygenated blood.
inferior vena cava
remove waste products from the blood and produce urine
- filtration, reabsorption, secretion
kidney
carry urine from the kidneys to the bladder
ureter
allows urine to pass outside the body
urethra
a less toxic waster from protein breakdown
urea
aorta –> renal artery –> kidney –> renal vein –> vena cava
anatomy of the excretory system
outside of the kidney
- tougher
cortex
middle of the kidney
- salty
medulla
“reservoir” where all the veins and arteries are
renal pelvis
connected to the collecting duct and goes to the renal pelvis
nephron