Perceive 发表于 2025-4-1 03:06:03
http://reply.papertrans.cn/17/1670/166981/166981_61.pngflorid 发表于 2025-4-1 07:15:34
Heart: Contraction, Conduction, and Electrocardiography,The sequence of events occurring in a complete heartbeat, a cardiac cycle, includes mechanical contraction of the atria and ventricles (systole) and relaxation of the heart muscle (diastole). This sequence is followed by filling of the ventricles (diastasis). Accompanying these events are changes in volume and pressure in the atria and ventricles.CAND 发表于 2025-4-1 11:14:43
Nervous System,ll body, the perikaryon, containing the nucleus; a single axon that carries excitation away from the perikaryon; and one or more branching dendrites that carry excitation to the perikaryon and axon. The perikarya of neurons lie in the brain, spinal cord, dorsal root ganglia, and ganglia of cranial n同时发生 发表于 2025-4-1 15:02:16
http://reply.papertrans.cn/17/1670/166981/166981_64.pngReservation 发表于 2025-4-1 21:47:03
Blood: Physical Characteristics, Formed Elements, Hemoglobin, and Coagulation,ses to and from the tissues, (3) removal of waste products of metabolism, (4) transportation of hormones produced by the endocrine glands, and (5) regulation of the water content of the body tissues. Blood is also important in the regulation and maintenance of body temperature.