What are you made of?
What are the three types of muscles in our bodies?
Skeletal
Smooth
Cardiac
__________ travels across the synapse in a vesicle, arriving at receptors on the muscle
Acetylcholine (neurotransmitter)
When naming muscles, "rectus" means ___________
This chemical helps regenerate ATP in our bodies
Creatine Kinase
The Statue of Liberty was given to the US by which country?
France
_________ connect bones to muscles
Tendons
When oxygen levels are low, our muscle cells use ___________ to generate ATP (be specific!)
Lactic Acid Fermentation
You could expect to find an "orbicularis" muscle _____________
surrounding an opening (eyes, mouth)
This chemical travels in vesicles across the synapse of the neuromuscular junction
Acetylcholine
What part of the human body has the thinnest skin?
The eyelid
Name three functions of our muscular system
Movement
Posture
Protection
Heat
The __________ is the part of a muscle directly across from the motor neuron/synapse, receiving the acetylcholine
Motor end plate
Which muscle would be larger,
Fibularis longus or Fibularis Brevis
Fibularis longus
This chemical is stored in the T-tubules and is released into the sarcoplasm when prompted
Calcium
In Greek mythology, who had snakes for hair and could turn people into stone if they looked at her?
Medusa
The part of a muscle fiber between two Z lines is known as a
Sarcomere (Z-lines are the attachment sites of actin filaments)
What causes Rigor Mortis? (be specific!)
When a person dies, their body no longer produces ATP. ATP is responsible for the unattachment of the actin and myosin, so without ATP the myosin does not let go (the "stiffness" of rigor mortis)
The Latin word for "breast" (used to name our chest muscles) is ____________
Pectus
This molecule is broken down at the beginning of Cellular Respiration, eventually leading to the creation of ATP
Glucose
As of 2021, what is the population of Quincy?
(+/- 10,000)
101,000 (91,000 - 111,000)
Name the three layers of connective tissue in our muscles, as well as specifically what each layer surrounds/covers
Epimysium - surrounds entire muscle
Perimysium - surrounds fascicles
Endomysium - surrounds muscle fiber
Please describe the Sliding Filament model from Motor Neuron to muscle contraction
-Action potential arrives at neuromuscular junction
-acetylcholine released across synapse
-AP travels along T-Tubules
-Calcium (Ca2+) released into sarcoplasm
-Ca2+ binds to troponin on the actin, exposing binding site for myosin
-Power stroke (myosin pulls on actin, shortening muscle)
-Contraction
What is the difference between a muscle's insertion and its origin?
Insertion: attachment to the moveable bone
Origin: attachment to the immovable bone
ex) Biceps Brachii
-Origin: Scapula
-Insertion: Radius
This molecule moves the myosin head to a higher-energy state (called a "cocked" position) during the power stroke
ATP
This element, which has a "Valley" named after it, makes up 25 percent of the earth's crust.
Silicon Valley (San Francisco)