Tag: muscles

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Fun Fact: Iliopsoas

Anatomy def: Iliopsoas muscles are flexors of the hip joints. Flexion draws together the bones of a joint thereby reducing the angle between them. 

Outlander def: Preferring the Highland Fling dismount, Claire and Jamie contract right iliopsoas muscles to hoist their right legs and skedaddle-from-the-saddle.

Learn about iliopsoas in Anatomy Lesson #7: Jamie’s Thighs – Ode to Joy!

Each iliopsoas is a composite muscle formed of iliacus and psoas. These muscles arise in the abdomen via pelvic bone and lumbar vertebrae, respectively. They descend into the thigh, unite and insert via a common tendon into the femur. 

As they contract, the thigh is raised toward the torso, or with the thigh fixed (held steady), the torso is flexed toward the thigh. We actually have nine hip flexors for each hip joint, but iliopsoas is strongest!

Fun Fact: If one is a proper anatomist (he he), psoas is more accurately termed psoas major.  Why? Because, there is a psoas minor – albeit only 25% of people have one. When present, it’s a pretty dinky muscle. It lies anterior to psoas major and contributes little to hip flexion.

And,  just so you know, the “p” in psoas is silent, so the word is pronounced “soas.”  

Read about thighs in Diana’s first splendid tome, Outlander! Does she mention iliopsoas muscle? No, but she does mention thighs. Woot! 

Claire notices Jamie’s thighs on that wild ride through the night near Cocknammon Rock:

My companion seemed to be having little trouble, in spite of being unable to use his right hand. I could feel his thighs behind mine, shifting and pressing occasionally to guide the horse. I clutched the edge of the short saddle in order to stay seated; I had been on horses before, but was by no means the horseman this Jamie was.

And, later after marriage vows have been made, Jamie recalls his thighs and praises Claire’s bottom <G>:

But then that ride through the dark together….with that lovely broad arse wedged between my thighs…

See Claire do the Highland High Kick in Starz ep. 102, Castle Leoch.  Gentleman Jamie follows suit as he dismounts to aid deceitful Geneva in Starz, ep. 304, Of Lost Things!

The deeply grateful,

Outlander Anatomist

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Photo credits: Sony/Starz

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Fun Fact: Arrector Pilus

Anatomy Def: Arrector pili (pl.) are small muscles attached to hair follicles. Contraction of these muscles pulls hairs upright, sometimes causing “goose bumps.” 

Outlander Def: Beard hairs grant Claire endless moments of fascination. Stroking beard hairs causes arrector pili muscles to contract and raise the hairs –  making shaving easier.

Learn about arrector pili (pl) muscles in Anatomy Lesson #6, “Claire’s Hair – Jamie’s Mane” or “Jesus H. Roosevelt Christ!”

Arrector pili are smalll spindle-shaped muscles at the base of our body hairs. Under involuntary control, various stimuli cause arrector pili to contract including stroking, cold, fright, and aggression. Contraction may also aid expulsion of sebum from skin sebaceous glands. 

Read about Jamie’s facial hairs in Voyager book, where, aboard the Artemis, Claire contemplates his substantial beard. Herself has a such way with words!

“… I wish you wouldn’t shave your beard just yet,” I added, as he bent to set down the tray he was holding. 

“Why not?” He glanced curiously over his shoulder at me, and I felt the heat rising in my cheeks.

“Er … well. It’s a bit … different.” 

“Oh, aye?” He stood up and took a step toward me.

… The dark blue eyes had slanted into triangles of amusement. 

“How, different?” he asked. 

“Well, it … um …” I brushed my fingers vaguely past my burning cheeks. “It feels different. When you kiss me. On my … skin.” 

See Claire gently stroke Jamie’s beard in Outlander episode 313, Eye of the Storm. Warning! Warning! Arrector pili muscles on high alert! <G>

The deeply grateful,

Outlander Anatomist

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Photo Credit: Sony/Starz

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Fun Fact: latissimus dorsi

latissimus /läˈtisəməs/ dorsi /dor-si/
Sing. n: latissimus dorsi; pl. noun: latissimi dorsi
First use: early 17th century
From Latin latissimus meaning broadest + dorsum meaning back

ep-106-latissimus-dorsi
Anatomy def: Broadest pair of back muscles, extending from lower spinal vertebrae to each humerus. Latissimi dorsi extend the humeri (pl.) as in pull-ups but also adduct (pull against torso) and internally rotate (roll towards sternum) these bones. Commonly known as “lats,” at the gym.

Outlander def: Substantial Jamie “lats” strain against ghastly iron manacles as they anticipate the lead pummels!

Learn about latissimi dorsi and the movements each exerts on its respective humerus in Anatomy Lesson #19, “To Arms, Too Arms, Two Arms!”

Read about Jamie’s back muscles in Dragonfly in Amber book. Herself writes about back muscles fairly often (yay!). Somewhere, amid these back muscles are the latissimus dorsi!

Jamie had by now thrown himself on the floor and was doing the Royal Air Force exercises I had recommended to strengthen the muscles of his back.

He was gentle and slow, pausing now and then to kiss me deeply, moving again only at my silent urging. I ran my hands softly down the slope of his back, careful not to press on the healing ridges of the fresh scars.

I touched each soft hollow, the hidden places of his body. Felt the grace and the strength of each curving bone, the marvel of his firm-knit muscles, drawn lean and flexible across the span of his shoulders, smooth and solid down the length of his back…

See Jamie’s left latissimus dorsi (red arrows) bulge at Fort William’s whipping post (Starz, episode 106, The Garrison Commander). If only he could smack that madman in the mouth… Ahhhh, wait a wee bit Jamie, this will come to pass soon!

A deeply grateful,

Outlander Anatomist