Which of the following are synostoses? Select all that apply.
_____ Fusion of left and right frontal bones.
_____ Fusion of left and right mandibular bones.
_____ Fusion of left and right pubic bones.
_____ Fusion of some cranial bones as sutures ossify.
__X__ Fusion of left and right frontal bones.
__X__ Fusion of left and right mandibular bones.
__X__ Fusion of some cranial bones as sutures ossify.
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A human embryo develops with a mutation that prevents smooth muscle from developing in the body. Which bodily functions will be most heavily affected by this mutation if it survives to birth?
A. Digestive system functions B. Muscular movement C. Bone functions D. Heart functions
The distal end of the radius articulates with how many bones of the wrist?
a) 1 b) 2 c) 3 d) 4 e) 5
The calvaria is made up of cranial bones and is part of the skull
Indicate whether this statement is true or false.
Arrange the following events in the proper sequence:
1. Efferent neuron reaches threshold and fires an action potential. 2. Afferent neuron reaches threshold and fires an action potential. 3. Effector organ responds by performing output. 4. Integrating center reaches decision about response. 5. Sensory organ detects change in the environment. A) 5, 3, 4, 2, 1 B) 5, 2, 4, 1, 3 C) 5, 1, 4, 2, 3 D) 2, 3, 5, 1, 4 E) 3, 1, 4, 2,