Answer the following questions true (T) or false (F)
1. Symphysis joints provide no movement and are functionally classified as synarthroses.
2. Both synovial fluid and articular cartilage function in shock absorption and the lubrication of a synovial joint.
3. Synovial joints are different from cartilaginous and fibrous joints due to the presence of a joint (synovial) cavity.
1. FALSE
2. TRUE
3. TRUE
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How many seminiferous tubules are found in each lobule?
a) 1-3 b) 50-100 c) 200-300 d) 500 or more e) Millions
Answer the following statements true (T) or false (F)
1. Two neuron reflexes contain an interneuron and a motor neuron. 2. A ganglion is a group of nerve cell bodies located in the peripheral nervous system. 3. The difference between a two- and three-neuron reflex is the presence of an interneuron. 4. All interneurons are found in the central nervous system. 5. Multiple sclerosis is a disorder caused by injury or death to the oligodendrocytes.
Hormones alter cellular operations by ____________________.
modifying the rate of transcription of a particular enzyme stimulating the synthesis of a specific protein turning an existing enzyme on or off Only A and B are correct All choices are correct
Which of the following is a common piece of equipment used in dissecting preserved specimens?
A) microcentrifuge B) microscope C) water bath D) scalpel