bio 20 > muscles > Flashcards

muscles Flashcards

(46 cards)

Study These Flashcards
1
Q

muscles

A
  • skeletal
  • smooth
  • cardiac
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2
Q

skeletal muscle cells

A
  • striated
  • many muclei
  • voluntary contraction
  • usually attatched to bones by tendons
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3
Q

smooth muscle cells

A
  • non-straited
  • one nucleus
  • involuntary contractions
  • in the walls of internall organs
  • responds to the sympathetic/parasympathetic nervous system
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4
Q

cardiac muscle cells

A
  • striated
  • one nucleus
  • involuntary contractions
  • in the walls of the heart
  • stimulated by sympathetic/parasympathetic nervous system
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5
Q

parasympathetic

A
  • relaxation
  • rest and digest
    ex. produces tears
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6
Q

sympathetic

A
  • fight or flight
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7
Q

muscle structure

A

muscle –> muscle fibre bundle –> muscle fibre –> myofibrils –> myofilaments

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8
Q

sacroplasm

A
  • “cytoplasm of the muscle fibre”
  • filled with Ca+ ions required for muscle contraction
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9
Q

myofibrils

A

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

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10
Q

skeletal muscle arrangement

A

bone –>tendon–>nerve–>muscle fibre–>sacroplasmic reticulum–>myofibril–>myofilaments

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11
Q

renal artery

A

carry oxygenated blood from your heart to your kidneys

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12
Q

renal vein

A

carries deoxygenated blood from the kidney to the inferior vena cava

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13
Q

aorta

A

transports blood to the kidneys

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14
Q

inferior vena cava

A

collects deoxygenated blood.

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15
Q

kidney

A

remove waste products from the blood and produce urine
- filtration, reabsorption, secretion

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16
Q

ureter

A

carry urine from the kidneys to the bladder

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17
Q

urethra

A

allows urine to pass outside the body

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18
Q

urea

A

a less toxic waster from protein breakdown

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19
Q

anatomy of the excretory system

Study These Flashcards
A

aorta –> renal artery –> kidney –> renal vein –> vena cava

20
Q

cortex

Study These Flashcards
A

outside of the kidney
- tougher

21
Q

medulla

Study These Flashcards
A

middle of the kidney
- salty

22
Q

renal pelvis

Study These Flashcards
A

“reservoir” where all the veins and arteries are

23
Q

nephron

Study These Flashcards
A

connected to the collecting duct and goes to the renal pelvis

24
Q
  • skeletal
  • smooth
  • cardiac
25
- striated - many muclei - voluntary contraction - usually attatched to bones by tendons
skeletal muscle cells
26
- non-straited - one nucleus - involuntary contractions - in the walls of internall organs - responds to the sympathetic/parasympathetic nervous system
smooth muscle cells
27
- striated - one nucleus - involuntary contractions - in the walls of the heart - stimulated by sympathetic/parasympathetic nervous system
cardiac muscle cells
28
- relaxation - rest and digest ex. produces tears
parasympathetic
29
- fight or flight
sympathetic
30
muscle --> muscle fibre bundle --> muscle fibre --> myofibrils --> myofilaments
muscle structure
31
- "cytoplasm of the muscle fibre" - filled with Ca+ ions required for muscle contraction
sacroplasm
32
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
33
bone -->tendon-->nerve-->muscle fibre-->sacroplasmic reticulum-->myofibril-->myofilaments
skeletal muscle arrangement
34
carry oxygenated blood from your heart to your kidneys
renal artery
35
carries deoxygenated blood from the kidney to the inferior vena cava
renal vein
36
transports blood to the kidneys
aorta
37
collects deoxygenated blood.
inferior vena cava
38
remove waste products from the blood and produce urine - filtration, reabsorption, secretion
kidney
39
carry urine from the kidneys to the bladder
ureter
40
allows urine to pass outside the body
urethra
41
a less toxic waster from protein breakdown
urea
42
aorta --> renal artery --> kidney --> renal vein --> vena cava
anatomy of the excretory system
43
outside of the kidney - tougher
cortex
44
middle of the kidney - salty
medulla
45
"reservoir" where all the veins and arteries are
renal pelvis
46
connected to the collecting duct and goes to the renal pelvis
nephron
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