also what is the difference between a flexor and an extensor?
ahh Biology hurts my brain..
2007-01-21 05:15:46 · 6 answers · asked by heyheyhey 2 in Science & Mathematics ➔ Biology
Couple of reasons, deep arteries protects them and is a means of conserving heat energy. A flexor is a muscle that pulls something towards the body, extensor is a muscle that pulls something away from the body.... but better check your book, they may have changed biology since I took it 30+ years ago!
2007-01-21 05:29:01 · answer #1 · answered by tmarschall 3 · 0⤊ 0⤋
ummm, to protect them from injury.... just like the heart and lungs are protected by your rib cage, brain is housed inside a skull.
without going to great detail flexors pull and extensors push. an example would be your elbow or fingers, flexors cause them to close and extensors extend or open them again.
2007-01-21 05:28:02 · answer #2 · answered by Porterhouse 5 · 0⤊ 0⤋
To keep the blood warm, regulate body temperature and the general design in nature is to branch off from the main source, an example would be the rivers turning to streams or trunks, branches to leaves to veins
2007-01-21 05:27:30 · answer #3 · answered by earth_spirit2004 1 · 0⤊ 0⤋
Nature designed our body this way for protection of the arteries which you may think of a river of life support..
2007-01-21 05:25:36 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Lestermount
2016-09-15 11:32:08 · answer #5 · answered by jason w 1 · 0⤊ 0⤋
To provide necessary support as the blood flows at a high pressure.
2007-01-21 10:34:27 · answer #6 · answered by moosa 5 · 0⤊ 0⤋