
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Transcribed Image Text:### Educational Resource: Understanding Muscle Functions in the Back and Abdominal Regions
This interactive exercise helps students match various muscles with their primary functions. It focuses on muscles in the back and abdominal regions and categorizes them based on their main roles.
#### Muscle Options:
- **Semispinalis cervicis**
- **Spinalis cervicis**
- **Quadratus lumborum**
- **Longus colli**
- **Longus capitis**
- **External intercostals**
- **Multifidus**
- **Interspinales**
- **Internal intercostals**
- **Transversus abdominis**
#### Function Categories:
- **Extensors**
- **Flexors**
- **Levators**
- **Depressors**
- **Compressors**
Students need to drag each muscle into the appropriate function box. For example, some muscles might function primarily as extensors, helping in extending the spine, while others might be involved in flexing, lifting, or compressing parts of the body.
The exercise encourages understanding of anatomical functions and strengthens knowledge of biomechanics.
Use the "Available Hint(s)" for guidance or click "Reset" to start the exercise over if needed. Once all muscles are placed into their categories, students can submit their answers for feedback.

Transcribed Image Text:**Lab Coaching Activity: Muscles of the Vertebral Column, Abdomen, and Pelvis**
The muscular makeup of the dorsal region is a complex arrangement of various muscles with functions to provide support while allowing movement. The back moves in multiple directions: anterior and lateral flexion, extension, and rotation. Abdominal muscles provide anterior support and aid back muscles in movements such as lifting objects. Some back pains result from weak abdominal muscles. Along with back support, the abdominal muscles help to compress the abdomen and flex the vertebral column.
**Activity Instructions:**
Study the muscles of the back and the abdominal regions and match the correct term with the correct **PRIMARY** function.
- View Available Hint(s)
**Muscles List:**
- Semispinalis cervicis
- Spinalis cervicis
- Quadratus lumborum
- Longus colli
- Longus capitis
- External intercostals
- Interspinales
- Internal intercostals
- Transversus abdominis
- Multifidus
**Function Categories:**
- Extensors
- Flexors
- Levators
- Depressors
- Compressors
**Submit Button**
**Part D - Pelvic Muscles**
The pelvic floor and wall form a complex muscular sheet called the perineum that supports the organs of the reproductive and digestive systems. The perineum is divided into urogenital and anal triangles. The anterior edge of the anus forms the base of the urogenital triangle, and its apex is the pubic symphysis. The anal triangle shares the same base as the urogenital triangle, except that it forms the posterior portion of the perineum and peaks at the coccyx. The major muscle forming the pelvic floor is the levator ani. Within each triangle, there are various muscles involved in functions such as urination, defecation, childbirth, erection, and ejaculation, to name a few.
**Label the following muscles.**
- View Available Hint(s)
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