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Muscular System
The muscular system allows humans to move. Muscles also provide strength, balance and heat.
11,239 Questions
What is difference between extending and flexing your arm at the elbow?
Flexion is the act of bringing two bones closer together, decreasing the angle between the two bones.
Extension is the act of increasing the angle between two bones, resulting in a straightening motion.
Does walking slow at a high incline slim thighs and butt or gain muscles?
You would gain muscle faster than you would lose weight.
What happens when thin filaments in a muscles fiber slide over the thick filament?
Contraction or relaxation of muscle fibre, due to similar effect in sarcomere
What is the junctions between cardiac muscle cells?
Desmosomes and gap junctions
But, more specifically...the junctions found in Cardiac muscles are called "Intercalated Discs"
singular: INTERCALATED DISC
plural: INTERCALATED DISCS
How is a muscle connected to a bone?
it is the shiznit
No, it's not "the shiznit"
Muscle is connected to a bone with ligaments.
What makes involuntary muscles move?
well involuntary muscles are muscles you can't control. like your heart. obviously you want your heart to move so it can keep you alive. so i guess yeah they do. but if you mean it like can you will your involuntary muscles to stop moving, no you cannot. they will continue moving unless interrupted(death, illness, etc...)
Name the muscle known as the anitgravity muscle what three muscles combine to form this muscle?
Oesophagus. Supported by superior, middle and inferior pharyngeal constrictor muscles, which aid peristalsis and force a bolus of food inferiorly towards the stomach - even while the subject is upside-down!! Brought to you by Ash.
What protein shields the myosin-binding site preventing contraction from happening at rest?
ATP entering myosin head
Why is it called bicep versus a triceps?
Triceps have 3 parts joining at the elbow.
Biceps got 2 parts joining at elbow.
It's the opposite of "smile." If you're frowning, it means the corners of your mouth are turned down, like you're sad. If you frown upon something, it means you disapprove of it.
What can cause muscles in your low arms and neck ache?
I am on this web site seeking answers also. I have the same problem with finger tips aching and upper arm pain; It is so bad in the morning. Please help!
Are smooth muscle and smooth muscle tissues the same?
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What are some causes of deltoid muscle pain?
The axillary nerve, which orginates from root C7 of the brachial plexus, innervates the deltoid . The radial nerve also orginates off the same cord. So, it may be linked to your cervical spine, or the deltoid muscle compressing the nerve.
Do muscles need oxygen to work?
Yes, cardiac muscles cells have a very high oxygen demand, since they are constantly in motion. This is why any shortage of oxygen causes angina, or if the oxygen deprivation is long enough, it causes death of the muscle cells - what is commonly called a heart attack.
How does cardiac muscle resembles skeletal muscle?
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They are both striated muscles, and are both not tapered at the ends.
the anterior part of the deltoid muscle flexes and medially rotates the humerus/ the arm. to do this it is helped by muscles like coracobrachialis and pectoralis major, corachobrachialis also adduct and flex the arm at shoulder joint.
