Examlex
The respiratory pacemaker is located in the ____.
Testosterone
A steroid hormone that plays a key role in the development of male reproductive tissues, as well as promoting secondary sexual characteristics.
Pigmented Hairs
Pigmented hairs are hairs that contain melanin, which gives hair its color, varying from person to person and changing with age.
Terminal Hairs
The thick, pigmented hairs that replace vellus hairs in certain body parts during puberty.
Lanugo
Fine, soft hair that covers the body of a fetus, serving as insulation before the development of fat layers.
Q16: provides muscle attachment sites; produces red blood
Q24: Myoglobin supplies _ to fuel muscle activity.<br>A)
Q48: Breathing is under _ control.<br>A) voluntary<br>B) involuntary<br>C)
Q50: produces ADH<br>A)posterior pituitary<br>B)adrenal cortex<br>C)pancreas<br>D)thyroid<br>E)pineal<br>F)anterior pituitary<br>G)adrenal medulla<br>H)parathyroid
Q72: The _ system is physically the outermost
Q74: membranes that enclose and protect the brain
Q85: Endocrine glands and neurons receive signals from
Q85: An example of an animal with paired
Q87: For muscles to contract, _ ions need
Q88: An essential amino acid or fatty acid