Answer:
True
Explanation:
Pacemaker cells, unlike other neurons in the body, can depolarized themselves (and therefore can fire action potentials) without the need of an external innervation of the autonomic nervous system.
Each class of pacemaker cells has its own intrinsic rate.
For example, sinoatrial node rate is 60-100 bpm (the normal heart frequency).
The atrioventricular node is also part of the electrical conduction system of the heart. When the sinoatrial node fails, atrioventricular node takes the lead (40-60 bpm).
Answer:
The correct answer is a. elevated ADH levels
Explanation:
The function of ADH is to regulate the excretion of water from kidneys. As Dan has been lost in the desert for 2 days his body must be dehydrated and in stress which gives signal to hypothalamus gland to increase ADH level.
Once ADH level is increased his kidney starts reabsorbing as much water as it can preventing his body to become dehydrated and reduce his urine amount.
So the correct answer is a. elevated ADH levels
Answer:The final step in both pathways would be the activation of factor X, leading to conversion of prothrombin II to thrombin IIa. Option C.
Explanation: blood coagulation is the processes that leads to blood clot formation. The blood clot formed is made up of fibrin and platelets, which forms hemostatic plug over a wound site. The blood coagulation is made up of two partways that led to the formation of clot. The intrinsic pathway also called contact activation pathway and the extrinsic pathway which is also known as the tissue factor pathway. The both pathways are connected by a common pathway whereby factor X is activated leading to leading to conversion of prothrombin II to thrombin IIa. Thrombin then converts fibrinogen to fibrin( blood clot). I hope this helps. Thanks.
Answer:
Tess needs to have a C-section right away!!!! The baby is probably breached that is why she is having pain. Have her husband hold her hand and tell her to breathe and it is okay.
Explanation:
