The pericentriolar material is believed to be responsible for ________.
A. centrosome formation
B. kinetochore formation
C. cytoskeletal organization
D. centriole replication
Answer: C
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With respect to the control of ventilation, which brain region stimulates the internal intercostal muscles to contract, causing forced exhalation?
A. Ventral respiratory group (VRG) B. Pleurotaxic area C. Dorsal respiratory group (DRG) D. Pneumotaxic area E. Apneustic area
Which hormone is not correctly matched?
A) epinephrine: amino acid derivative B) insulin: peptide hormone C) testosterone: amino acid derivative D) cortisol: lipid derivative E) eicosanoids: lipid derivative
Which of the following is incorrect pertaining to the neurovascular supply of the vertebral column?
A) The vertebral bodies are supplied exclusively by the anterior and posterior spinal arteries. B) Venous drainage is to both internal (within the vertebral canal) and external venous plexuses. C) Zygapophyseal joints are supplied by medial branches of posterior rami of spinal nerves. D) Pain fibers from the ligamentum flavum are conveyed by (recurrent) meningeal branches of spinal nerves. E) Proprioceptive fibers from the anterior longitudinal ligament are conveyed by (recurrent) meningeal branches of spinal nerves.
What factors have been identified that can cause an increased risk of heart attack?
What will be an ideal response?