Weegy: The spinal cord serves as a conduction pathway for impulse going to and from the Brain. User: The walls of veins have the same three layers as the ___. A.) Arteries B.) Capillaries C.) Tissue D.) Soma Weegy: The walls of veins have the same three layers as the arteries. User: What organs make up the central nervous system? A.)heart B.)brain and spinal cord C.)lungs D.)liver Weegy: The central nervous system is made up of the brain and spinal cord. User: Diastole is the ___ phase of the cardiac cycle. A.)Contraction B.)Relaxation C.)Monitoring D.)Termination Weegy: Diastole is the RELAXATION phase of the cardiac cycle. User: The pulmonary circuit and the ___ circuit make up the circulatory pathways of blood vessels for the body. A.)Blood B.)Capillary C.)Flexible D.)Systemic Weegy: The pulmonary circuit and the systemic circuit make up the circulatory pathways of blood vessels for the body. User: Arteries carry blood___ the heart. A.) away from B.)towards C.)closer to D.)all of the above Weegy: Arteries carry blood AWAY FROM the heart. User: Approximately ___ of the total blood volumes is in the veins at any given time. A.)30% B.)50% C.)70% D.)90% Weegy: Almost 70% of the total blood volume is in the veins at any given time. User: The three basic parts of a neuron include_____. A.)Soma,dendrites,axon B.)Dendrites,cell body,neurotransmitters C.)Axon,dendrites,neurotransmitters D.)None (More)

Weegy: ALL OF THE ABOVE. For adolescents, risk of drug abuse increases greatly during times of: Transition, Divorce and Changing schools. User: What happens when anabolic steroids are used in high doses? A. Increases irritability and aggression B. Decreases irritability and aggression C. Increases feelings of complacency D. Decreases feelings of complacency Weegy: When anabolic steroids are used in high doses - Increases irritability and aggression. User: ________ a synthetic opiate that blocks the effects of heroin and eliminates withdrawal symptoms, has a proven record of success for people addicted to heroin. A. Methadone B. Codeine C. Morphine D. Tetracycline Weegy: Methadone a synthetic opiate that blocks the effects of heroin and eliminates withdrawal symptoms, has a proven record of success for people addicted to heroin. User: Someone who smokes marijuana every day may be functioning at a ________ intellectual level all of the time. A. Suboptimal B. Optimal C. Neither optimal or suboptimal D. None of the above Weegy: Someone who smokes marijuana every day may be functioning at a SUBOPTIMAL intellectual level all of the time. User: According to NIDA, _______ has continued to decline among high school seniors. A. Marijuana use B. Alcohol use C. Ecstasy use D. All of the above (More)

Weegy: ALL OF THE ABOVE. Mothers who abuse cocaine during pregnancy often have babies prematurely delivered, with low birth weights and with smaller head circumferences. User: Marijuana increases heart rate and the effect can last up to _____ hours. A. 50 B. 2 C. 3 D. 10 Weegy: Marijuana increases heart rate by 20-100 percent shortly after smoking; this effect can last up to 3 hours. (More)

Weegy: Ingestion is the first activity of the digestive system. User: Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds Weegy: Every 3 to 5 seconds, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. User: What is the exchange of gases between e lungs and the blood? A.)Internal Respiration B.)Posterior Respiration C.)External Respiration D.)None of the above Weegy: The exchange of gases between the lungs and the blood is: external respiration. (More)

Weegy: Atmospheric pressure is: Pressure of the air outside the body. (More)