What is Alzheimer's disease?

A. Inflammation of the brain
B. Progressive brain disease characterized by dementia
C. Disorder characterized by a death to part of the brain caused by a lack of blood supply
D. Inflammation of the meninges that cover the brain and spinal cord


Answer: B

Anatomy & Physiology

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The problem of electrical discontinuity caused in the normal heart by the connective tissue separating the atria from the ventricles is solved by

a. having the A-V node function as a secondary pacemaker. b. having an ectopic pacemaker. c. coordinating electrical activity in the atria with electrical activity in the ventricles by connecting them via the vagus nerve. d. coordinating electrical activity in the atria with electrical activity in the ventricles by connecting them via the bundle of His. e. coordinating electrical activity in the atria with electrical activity in the ventricles by connecting them via the Purkinje fibers.

Anatomy & Physiology

Here is a figure showing major trunk cavities and other structures. What does "B" represent?

A. diaphragm B. mediastinum C. pelvic cavity D. thoracic cavity E. abdominal cavity

Anatomy & Physiology

A protein that is converted to an active enzyme is a

A. codon. B. proenzyme. C. gene. D. pre-mRNA. E. ribosomal RNA (rRNA).

Anatomy & Physiology

A certain drug is known to block monovalent cation channels. This drug is used as a "muscle relaxer." Would it affect both smooth and skeletal muscles or only skeletal muscles? Defend your answer.

What will be an ideal response?

Anatomy & Physiology