Answer:
See the answer below
Explanation:
The sympathetic and sympathetic nervous systems make up the autonomic nervous system, regulating involuntary functions. The first acts in situations of fight or flight, for example in an accident of self-actions such as: increased heart rate, pupil dilation, relaxes airways, among others. Neurotransmitters are released: adrenaline and norepinephrine. The parasympathetic system performs antagonistic functions by activating in relaxation situations: it decreases heart rate, contracts pupils, constricts airways. Acetylcholine is released as a neurotransmitter.
Well during a bicep curl the triceps relax enough for the biceps to be able to curl to tense and contract in a curl. This is called antagonist which means “a muscle whose action counteracts that of specified muscle.”
Hope this helps:)
Answer:
The correct answer will be- to provide smooth surface at the ends of synovial joint.
Explanation:
Articular cartilage is the white smooth tissue present at the end of the bones which covers the bones at the joints. The articular cartilage is devoid of the nerves, blood vessels and lymphatics but is exposed to the biochemical environment.
The cartilage at the joint helps in the movement of the bones by reducing the friction produced by gliding or sliding of the bones over each other.
Thus, to provide a smooth surface at the ends of synovial joint is the correct answer.
All of the above apply to your question
