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study stack set 2
| Question | Answer |
|---|---|
| Extrinsic eye muscles | Origin: common tendinous ring around optic foramen Insertion: sclera of eyeball Action: move eye in all directions |
| Pectoralis minor | Origin: ribs 3-5 Insertion: coracoid process of scapula Action: depresses scapula |
| Central nervous system | Consists of the brain and spinal cord |
| Subdivisions of the PNS | - Somatic (voluntary) nervous system (SNS) - Autonomic(involuntary) nervous system - Enteric nervous system (ENS) |
| Somatic nervous system | - neurons from receptors to the CNS - motor neurons to skeletal muscle tissue |
| Multipolar neurons | Several dendrites and one axon |
| endocrine glands | ductless organ that secretes hormones into the blood stream |
| Parathyroids | Function: release parathyroid (PTH) which raises blood calcium levels |
| pancreas | Function: secretes insulin which lowers blood glucose levels and promotes formation of glycogen; glucagon which raises blood glucose levels |
| posterior pituitary | Function: secretes antidiuretic (ADH) which stimulates water reabsorption by the kidneys; also secretes oxytocin which stimulates uterine contractions and release of milk |