Exam 41: The Animal Body and Principles of Regulation

Which of the following are the fundamental embryonic tissues called the "germ layers"?

The axon of a neuron can only communicate with other neuronal cells.

Which is another name for bone cells that remain alive even after the extracellular matrix becomes hardened with calcium phosphate crystals?

Some animals allow their body temperature to conform to the environment.What is the old term for these animals,and what is the newer preferred term?

The most abundant protein in mammals is collagen.This strong,ropelike molecule is particularly abundant in which tissue?

What feature of cardiac muscle helps the cells coordinate their contraction as a single unit?

A couple is having difficulty conceiving a child,and they decide to see a fertility specialist.Which two organ systems will the specialist examine in this couple?

You are an engineer at a power plant that creates large volumes of hot waste water,which disrupts the ecosystem of the river it drains into.Another part of the plant requires warm oil,and the plant uses large amounts of energy to heat it.Inspired by countercurrent exchange in whales,you save energy and benefit the environment by

Which cells aid in the operation of the nervous system but are unable to conduct nerve impulses?

Which of the following types of muscles are striated?

To diagnose and treat a disease,a doctor must evaluate the patient's body at multiple levels of organization.Identify the level of organization relevant to each stage of the process described below. (1)As part of Fred's annual physical,the doctor examined his skin,fingernails and hair for signs of disease.Noticing an unusual lesion on his neck,the doctor referred Fred to a dermatologist. (2)Upon observing the lesion,the dermatologist said,"Yes,this looks like it could be a squamous cell carcinoma,a tumor in the epidermis of the skin." (3)The dermatologist carefully examined all of Fred's skin for signs of additional tumors,but did not find any. (4)The dermatologist removed the lesion and sent it for a biopsy.Under the microscope,the pathologist saw some cells with abnormal morphology and confirmed a diagnosis of squamous cell carcinoma.However,he noted that the margins of the lesion were clear of abnormal cells,and the tumor had been successfully removed.

What are epithelial cells with a flat,irregular shape and tapered edges called?

When we watch Olympic athletes perform,we are admiring the expert control of which systems working together?

Where is the nucleus of a neuron found?

A friend asks you how exocrine glands differ from endocrine glands.She knows that both form from invaginated epithelium.How do you respond?

Which of these thermoregulation processes can be sustained for the longest period of time?

Which type of cells line the lungs and blood vessels?

Mechanisms that help generate heat and those that allow release of heat are an example of ________.Collectively,these mechanisms increase the ________ of body temperature.

You are researching a family with a heritable disease whose symptoms include hyper-flexible joints,pliable skin,stretchy ligaments,and fragile muscles that tear easily.You plan to use genetic testing to determine the cause of the disease.Which gene do you sequence first?

The cell body of a motor neuron resides in the spinal cord,but it may control muscles a long distance away.In a giraffe,the ________ of a leg motor neuron may be six feet long!