What are 3 things that influence the strength of a muscle contraction?

Initial length of muscle fibers , amount of load, and recruitment of motor units.

a contraction in which the tension within the muscle remains the same but the length changes

plasma membrane of a muscle fiber

what are the four kinds of protein that make up myofilaments?

myosin, actin, tropomyosin, and troponin

What is the sliding filament theory?

"explains muscle contraction by describing how actin and myosin filaments slide past each other to shorten the sarcomere" "actin moves past myosin"

What are primary functions performed by bones?

Mineral storage hematopoiesis Protection support

division of the nervous system carries motor commands from the CNS to muscles and glands

Responsible for processing and packaging proteins onto secretory vesicles that break away from the complex and migrate to various intracellular and extracellular destinations

Contain enzymes for digesting most cellular substances

are canals that contain nerves and blood vessels which nourish our bone tissue

what are Osteocytes and where are they found?

it is a bone cell that is within the bone matrix in small cavities called lacunae; The osteocytes detect any kind of stress or damage to the bone and initiate remodeling by signaling the osteoclasts to begin bone resorption

What are the two most important bone cells for bone formation?

osteoblast – cells that build bone tissue- and osteoclast – cells that break bone tissue These cells work together with the help of the osteocytes in a process called bone remodeling

is the process of breaking down bone and releasing the calcium into the blood stream

What are the three types of cartilages?

Hyaline Cartilage Fibrocartilage Elastic Cartilage

What the most abundant cartilage in the human body?

Most abundant cartilage in the body

What cartilage can be found in your external ear, in the eustachian tube and the epiglottis?

Elastic Cartilage - main job is to provide structural support and flexibility

whats another name for Hyaline cartilage and whats it main job?

Also called articular cartilage; Provides a nice glide for our bones to move smoothly in joint sockets Main job is to reduce friction and absorb shock

where can we find hyaline cartilage?

end of the bones between ribs nasal passage Connects the anterior ends of the ribs with the sternum Forms cartilage rings in the trachea , bronchi of the lungs and tip of nose

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physiology - Ashley

Question	Answer
What are 3 things that influence the strength of a muscle contraction?	Initial length of muscle fibers , amount of load, and recruitment of motor units.
isotonic	a contraction in which the tension within the muscle remains the same but the length changes
Sarcolemma	plasma membrane of a muscle fiber
what are the four kinds of protein that make up myofilaments?	myosin, actin, tropomyosin, and troponin
What is the sliding filament theory?	"explains muscle contraction by describing how actin and myosin filaments slide past each other to shorten the sarcomere" "actin moves past myosin"
What are primary functions performed by bones?	Mineral storage hematopoiesis Protection support
efferent	division of the nervous system carries motor commands from the CNS to muscles and glands
Golgi apparatus	Responsible for processing and packaging proteins onto secretory vesicles that break away from the complex and migrate to various intracellular and extracellular destinations
Lysosomes	Contain enzymes for digesting most cellular substances
What condition that would cause a nurse to monitor for hyperkalemia?	acute acidosis
osteons	are canals that contain nerves and blood vessels which nourish our bone tissue
what are Osteocytes and where are they found?	it is a bone cell that is within the bone matrix in small cavities called lacunae; The osteocytes detect any kind of stress or damage to the bone and initiate remodeling by signaling the osteoclasts to begin bone resorption
What are the two most important bone cells for bone formation?	osteoblast – cells that build bone tissue- and osteoclast – cells that break bone tissue These cells work together with the help of the osteocytes in a process called bone remodeling
bone resorption	is the process of breaking down bone and releasing the calcium into the blood stream
What are the three types of cartilages?	Hyaline Cartilage Fibrocartilage Elastic Cartilage
What the most abundant cartilage in the human body?	Most abundant cartilage in the body
what cartilage can be found in the Meniscus of your knee and pubic symphysis?	fibrocartilage
What cartilage can be found in your external ear, in the eustachian tube and the epiglottis?	Elastic Cartilage - main job is to provide structural support and flexibility
whats another name for Hyaline cartilage and whats it main job?	Also called articular cartilage; Provides a nice glide for our bones to move smoothly in joint sockets Main job is to reduce friction and absorb shock
where can we find hyaline cartilage?	end of the bones between ribs nasal passage Connects the anterior ends of the ribs with the sternum Forms cartilage rings in the trachea , bronchi of the lungs and tip of nose

Created by: user-1990795

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