Question

In: Anatomy and Physiology

Define Braxton Hicks contractions(identify the muscle group and hormone responsible)

Define Braxton Hicks contractions(identify the muscle group and hormone responsible)

Solutions

Expert Solution

The Braxton Hicks contractions are contractions of the uterine muscles in a pregnant woman long before the actual labor contraction and pain sets in.This is also called false labor pains .This usually occurs around the 2nd to 3rd trimesters of pregnancy.

These are the contractions of the uterine muscles .These contractions are a normal way by which the body of a pregnant women prepares by itself for the true labor contractions and this contractions also increase the fetal circulation.The Braxton hicks contractions are irregular,unrhythmic and has a varied intensity.They are not painful as like the true labor pains but can cause an uncomfortable feeling for the pregnant lady.They comes and goes often and does not develop to true pains.

The main causes of the Braxton hicks contraction is the dehydration of the mother. The sudden movements of the mother and the foetus an also stimulate these contractions. Generally Estrogen has a small role in this contractions by inducing the connexin proteins.


Related Solutions

define recruitment and summation. describe how these affect muscle contractions
define recruitment and summation. describe how these affect muscle contractions
Compare the decrease in muscle contractions with and without blood flow. Why is there a difference?
Compare the decrease in muscle contractions with and without blood flow. Why is there a difference?
If a muscle fiber is stimulated repeatedly, but not allowed to completely relax between contractions, it...
If a muscle fiber is stimulated repeatedly, but not allowed to completely relax between contractions, it will exhibit stronger tension as the stimulation becomes more frequent. This is an example of A. treppe B. asynchronous motor unit recruitment C. multiple wave summation D. tetany At rest, a skeletal muscle fiber has a sarcolemma that is A. depolarized B. polarized with a positive charge on the outside and negative charge on the inside C. polarized with a negative charge outside and...
Why is extracellular calcium needed in cardiac muscle contractions, and why is it important in delaying...
Why is extracellular calcium needed in cardiac muscle contractions, and why is it important in delaying repolarization?
Predict what effect each of these venoms would have had on the muscle contractions of the...
Predict what effect each of these venoms would have had on the muscle contractions of the biventer cervicis muscle. Remember to justify your answer Venoms and Reactions - 1.      Redback spider (Latrodectus hasseltii) – contains a toxin which forms pores in the cell membrane of neurons, allowing the influx of Ca2+ into the nerve terminal 2.      Blue-ringed octopus (Hapalochlaena lunulata) – contains a toxin which blocks voltage-gated Na+ channels 3.      Funnel-web spider (Atrax robustus) - contains a toxin which causes delayed inactivation of...
Identify the gland that secretes growth hormone, identify 3 targets of growth hormone, identify 3 specific...
Identify the gland that secretes growth hormone, identify 3 targets of growth hormone, identify 3 specific effects of growth hormone, and explain why these effects occur considering the ultimate effect of growth hormone.
Explain the following using your knowledge of muscle contractions. How is it possible that we can...
Explain the following using your knowledge of muscle contractions. How is it possible that we can delicately pick up a flower, yet the same muscles can squeeze/crush a pop can? You should discuss motor units/neurons, muscle fibres, frequency (of motor neurons firing = fibre contraction) and the All-or-None Principle.
Contrast the role of calcium cations in action potentials and muscle contractions Mention how their levels...
Contrast the role of calcium cations in action potentials and muscle contractions Mention how their levels in cytosol are regulated and which molecules or interac with the cations. Also explain the similarities of the calcium regulation in both mechanisms.
Case Study and Proposal: Each group is responsible to identify a small business and familiarize themselves...
Case Study and Proposal: Each group is responsible to identify a small business and familiarize themselves with its key business processes and problems (it could be anonymous/fictitious business). In the case study and proposal groups will provide relevant details about the business and identify potential business processes and functional areas where they will use the macros to the improve/automate business processes.
4. Describe the structure of musculoskeletal muscle. What are the skeletal muscle stem cells responsible for...
4. Describe the structure of musculoskeletal muscle. What are the skeletal muscle stem cells responsible for skeletal muscle regeneration after injury? Use this skeletal muscle stem cells as an example to describe changes of stem cells with aging (5 points) 5. Sexual reproduction is the formation of a new individual following the union of two gametes. Asexual cloning refers to reproduction without the fusion of gametes. Sexual reproduction or asexual cloning, which one is characterized by meiosis? Compare and state...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT