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rosewhale311Lv1

28 Sep 2019

List two or three features of an earthworm cross section thatdistinguish the dorsal and ventral surface.

Now that you have examined the unifying characteristics ofannelids, list 3 or 4 characteristics they share with flatworms andnematodes as the close ancestors.

Are any sensory organs evident in Ascaris? Why would this beadaptive?

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Keith LeannonLv2

28 Sep 2019

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1.All peripheral sensory input enters the spinal cord through the 2.Mechanoreceptor afferents are divided into two main classes based on(Points : 2) 3.Branches of SAI afferents terminate in ____________ where they are proposed to be the site of ____________ transduction.(Points : 2) 4.SAI afferents appear to be used by the CNS to perceive(Points : 2) 5.AII afferents have ________ receptive fields and greater sensitivity to ________ than do SAI afferents.(Points : 2) 6.Somatosensory afferents from the muscle are sensitive to ___________ while afferents from the tendon are sensitive to ___________.(Points : 2) 7.Kinesthesia is obtained by convergent afferents of the muscles, tendons, joints and___________8.Nociceptors respond to ________ stimuli and sense through use of ___________.(Points : 2) 9.First pain is transmitted through ______ receptors that carry discriminative information, and second pain is modulated by _______ receptors.(Points : 2) 10.Acute skin damage is accompanied by ____________ that is the result of local activation of nociceptors leading to ________.(Points : 2) 11.Somatic sensation retains separation of mechanosensation and __________ from nociception and ___________ which is evident from PNS to CNS.(Points : 2)12.The primary somatosensory cortex has ventral projections to(Points : 2) 13.The dorsal stream of the somatosensory cortex project to(Points : 2) 14.The dorsal column nuclei are located(Points : 2) 15.The lateral cervical nucleus is located in the ____________ and display ___________ receptive fields.(Points : 2) 16.Non-perceptual input of nociceptors influence behavior by(Points : 2)17. sensory trigeminal system is composed of the...18.The receptive fields of secondary somatosensory cortical neurons are ___________ than those of the primary somatosensory cortex.(Points : 2) 19.Receptive fields in the primary somatosensory cortex are(Points : 2)I really need help with this please! The person who is able to help me with the CORRECT answers will be compensated with 3000 points! This assignment will be graded instantly by a computer so I will know if the person actually tried or if they just put in some crazy answers just to get the points. The points will be rewarded IMMEDIATELY after the assignment is graded, which, as I stated above is done instantly by the computer once submitted. At least 75 to 80% of the questions must be correct in order to receice all 3000 points today. Thank you SO much in advance!!! :)

pucereindeer600

Select 30 medical terms from the articles.

Complete the table in this document, like the Summary Tables in your textbook.

In the first column list the medical term.

In the second column, list any prefixes and define them.

In the third column, list the root and define it.

In the fourth column, list any suffixes and define them.

In the fifth column list the exact definition of the term.

NOTE: You many not use any medical terms that appear in any of the summary tables in your textbook.

Make sure to include references to the articles your terms come from.

1: Facelift Anatomy

With age, characteristic changes occur in the central third of the face. ^[¹^] A youthful midface is characterized by prominent cheeks and a smooth transition between the lower eyelid and cheek. Structural, soft tissue, and skin changes develop as wrinkles and creases, progressive ptosis, and general atrophy of the structures.

Pessa confirmed the changes seen in the bony structures of the face, and these include a downward migration of cephalometric points. ^[²^] The downward migration manifests as a change in soft tissue volume. The effects of gravity and repeated animation of the face also directly affect the soft tissue that overlies the mimetic musculature.

The results of magnetic resonance imaging (MRI) evaluations have helped to determine that the mimetic muscles themselves remain intact; however, the attachment to the overlying soft tissue and skin changes. The repeated action of smiling results in deepening of the nasolabial fold at the point at which the superficial musculoaponeurotic system (SMAS) inserts into the dermis.

2: Pancreas Anatomy

Embryology

The pancreas develops as 2 buds (outpouchings) of endoderm from the primitive duodenum at the junction of the foregut and the midgut. A small ventral bud (pouch) forms the lower (inferior) part of the head and the uncinate process of pancreas, whereas a large dorsal bud (pouch) forms the upper (0) part of the head as well as the body and tail of the pancreas. The ventral bud rotates behind the duodenum dorsally from right to left and fuses with the dorsal bud, and the duct of the distal part (body and tail) of the dorsal bud unites with the duct of the ventral bud to form the main pancreatic duct (of Wirsung). Because the common bile duct (CBD) also arises from the ventral bud, it forms a common channel with the main pancreatic duct. The remaining proximal part (head) of the duct of the dorsal bud remains as the accessory pancreatic duct (of Santorini).

3: Conduction System of the Heart

The conducting system of the heart consists of cardiac muscle cells and conducting fibers (not nervous tissue) that are specialized for initiating impulses and conducting them rapidly through the heart (see the image below). They initiate the normal cardiac cycle and coordinate the contractions of cardiac chambers. Both atria contract together, as do the ventricles, but atrial contraction occurs first.

The conducting system provides the heart its automatic rhythmic beat. For the heart to pump efficiently and the systemic and pulmonary circulations to operate in synchrony, the events in the cardiac cycle must be coordinated.

4:Spleen Anatomy

Overview

The spleen is an organ shaped like a shoe that lies relative to the 9th and 11th ribs and is located in the left hypochondrium and partly in the epigastrium. Thus, the spleen is situated between the fundus of the stomach and the diaphragm. The spleen is very vascular and reddish purple in color; its size and weight vary. A healthy spleen is not palpable.

Development

The spleen develops in the cephalic part of dorsal mesogastrium (from its left layer; during the sixth week of intrauterine life) into a number of nodules that fuse and form a lobulated spleen. Notching of the superior border of the adult spleen is evidence of its multiple origin (see the image below)

5:Lung Anatomy

Development

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In personal Health:

1. Conflict resolution is inevitable whenever people live or work together. The goal of conflict resolution is to settle differences peacefully and creatively. Think back to a recent disagreement. How did you communicate your feelings to the other person involved? After reading the strategies for conflict resolution, what would you do differently?

2. Discussing/studying the functions of our reproductive systems (sexual anatomy) can be embarrassing for some students. Do you think students of this generation are more or less comfortable than their parents' generation when discussing such issues? Did either of your parents explain the menstrual cycle to you? If not, why do think they may have been uncomfortable doing so? Describe how the level of discomfort is changing in this current generation of college students?

3. It is sometimes difficult to express ourselves because of the boundaries established by gender role stereotypes (generalizations about how males and females should express themselves). List characteristics that you associate with being male. Now female. How do you think society/media has influenced your perceptions regarding the characteristics you chose? Now, suppose your son decides he wants to become a dancer. How would you feel about this? Would you willingly enroll him in dance classes, or try to discourage him? What role do you think society has played on your attitudes regarding gender role stereotyping?

4. The environment in which a child grows up has a tremendous impact on his/her psychological and social development. Think back to your childhood and list your family's strengths and weaknesses. Now list what you believe are the essential characteristics of a healthy "family" environment? How did your family compare? What can you do as a current or future parent to ensure that your child is raised in a healthy environment?

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