I believe the answer is Nerves. Carpal tunnel is usually caused from pressure (Or a "pinch" on the nerves) on the nerves which causes numbness and pain.
Where's the barriers or the question??
Answer:
Nature and Nurture
Explanation: Nature is said to be all genes and hereditary factors that influence who we are while nurture is the things in the environment where we grew up, how our parents trained us and the things we are exposed to and who they influence who we are.
The "nature versus nurture" debate is all about whether human behavior is determined by the environment, either prenatal or during a person's life, or by a person's genes as inherited by parents.
From the question Because blood pressure and heart diseases runs in Jeanette's family(Nature) the doctor advises that she should Not smoke and that she should follow a healthy diet(Nurture) so that she won't develop Heart diseases.
B. glia
*glial? is how it is actually spelled
Answer:
Labor contractions are the periodic tightening and relaxing of the uterine muscle, the largest muscle in a woman's body. Something triggers the pituitary gland to release a hormone called oxytocin that stimulates the uterine tightening.
I hope it's helpful!