Do you have a picture? It would really help answer your question
A systolic pressure of 112mmhg is a representation of the pressure in arteries during the contraction of the ventricles in the heart. So, C is correct. Systole means contraction while diastole means rest.
The biological basis for assigning all human beings into a singe species is that there so many, even tons of living organisms living on earth. These organisms differ in their external and internal organs and so to differentiate them from them, they are being classified into kingdoms then classes then phylums then family.
The epidural anesthesia is a method of pain relief, which is used during the labor pain. It is a well known regional anesthesia. It works by acting as an analgesic, which means a substance that eases the pain, a complete anesthesia or loss of feeling does not occur in the case of epidural anesthesia. It blocks the nerve signals from the lower spinal segments. It is also known as spinal epidural anesthesia or lumbar epidural anesthesia.
Hence, the black can be filled with lumbar.