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1.1 An introduction to the human body Read Online
1.2 The chemical level of organization Read Online
After studying this chapter, you will be able to:
Though you may approach a course in anatomy and physiology strictly as a requirement for your field of study, the knowledge you gain in this course will serve you well in many aspects of your life. An understanding of anatomy and physiology is not only fundamental to any career in the health professions, but it can also benefit your own health. Familiarity with the human body can help you make healthful choices and prompt you to take appropriate action when signs of illness arise. Your knowledge in this field will help you understand news about nutrition, medications, medical devices, and procedures and help you understand genetic or infectious diseases. At some point, everyone will have a problem with some aspect of his or her body and your knowledge can help you to be a better parent, spouse, partner, friend, colleague, or caregiver.
This chapter begins with an overview of anatomy and physiology and a preview of the body regions and functions. It then covers the characteristics of life and how the body works to maintain stable conditions. It introduces a set of standard terms for body structures and for planes and positions in the body that will serve as a foundation for more comprehensive information covered later in the text. It ends with examples of medical imaging used to see inside the living body.
Question: What portion of the visual field is represented in the left lateral geniculate?
Choices:
The superior half of the visual field of both eyes.
The inferior half of the visual field of both eyes.
The right half of the visual field of one eye.
The right half of the visual field of both eyes.
The left half of the visual field of both eyes.
Question: This region is characterized by
Choices:
Absence of bipolar cells.
Lack of blood vessels.
Absence of ganglion cells.
Absence of rods.
All of the above.
Question: This artery is a branch of the
Choices:
Basilar artery.
Middle cerebral artery.
Anterior cerebral artery.
Anterior choroidal artery.
Question: The central retinal artery is a branch of the
Choices:
Ophthalmic artery.
Anterior inferior cerebellar artery.
Ciliary arteries.
Anterior choroidal artery.
Question: What part of the ventricular system is closest to the optic radiations?
Choices:
Aqueduct.
Posterior horn of the lateral ventricle.
Fourth ventricle.
Third ventricle.
Frontal horn.
Question: This area is necessary for the
Choices:
Accommodation reflex.
Pupillary light reflex.
Blinking.
Night vision.
Question: Most cell bodies of neurons in this nucleus send their axons to
Choices:
Upper and lower calcarine cortex.
Lower half of calcarine cortex.
Upper half of calcarine cortex.
Question: Retinal detachment occurs because this region (arrow)
Choices:
Is the site of fusion of the optic cup and optic vesicle.
Is poorly vascularized.
The pigment epithelium is part of the choroid and adheres to it.
Question: This area of cortex is supplied by branches of the
Choices:
Posterior cerebral artery.
Middle cerebral artery.
Anterior cerebral artery.
Anterior choroidal artery.
Question: What major cerebral vessel is lateral to the chiasm?
Choices:
Anterior cerebral artery.
Middle cerebral artery.
Internal carotid.
Posterior communicating artery.
Question: Where do the axons of these cells go?
Choices:
The optic disc.
The inner plexiform layer.
The outer plexiform layer.
All of the above.
None of the above.